{
  "manageEntity": {
    "action": "Update",
    "entityId": "325743520",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd4fce5c9f0a5d8f769e069d5f22a45e420ec62ad117bbc7a7e20f93203fc6504",
    "signature": "0x5e25a0f044f53fd01e167187b9b29841d0684288e3ccea59c25daac20cc231d973133a89ec1e5ebe39a5c9174cd360232bdfcc993b186a78e221f0657c79dd541c",
    "signer": "0xBF23b207dCd7D0F2e635B21211819130e4f997F2",
    "userId": "325743520"
  }
}