{
  "manageEntity": {
    "action": "Update",
    "entityId": "475979959",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5dpwago34pvavdilyh4vc2pmigscdwewswubj423qsivsp3fbaoa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":230521759},{\"type\":\"playlist\",\"playlist_id\":147121945},{\"type\":\"playlist\",\"playlist_id\":810891082},{\"type\":\"playlist\",\"playlist_id\":1706820977},{\"type\":\"playlist\",\"playlist_id\":146094574}]}}}",
    "nonce": "0xdb37d48bfc514766cf025a24dd3250f578affe897f6dadb3e6c740c0b20a4695",
    "signature": "0x465ddafe5e22c9d679d7bc5dac01fd740040a528aaee5ff3ceadf548266430f737197fb6557e2651df3e21a5d79c17a67f5aba9d744dc32c21cb8869690b679f1c",
    "signer": "0x4b35342F15686b994c0aDE143556b5C14C5D069E",
    "userId": "475979959"
  }
}