{
  "manageEntity": {
    "action": "Update",
    "entityId": "308261833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieram2l2i33uetcaserpqqbrkxecvm3mvrpr4iypu4rgjstrpjsd7onq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":616769041},{\"type\":\"playlist\",\"playlist_id\":1312755949},{\"type\":\"playlist\",\"playlist_id\":310612173}]}}}",
    "nonce": "0x774b46026140ead7e9d92ccf7b4bc65c337dde0e7413d29a7d0c29c62a9dedb8",
    "signature": "0x773d5d3689b308cb8510d4d7d0d64e6ffac374ebc4df85021cc66f8058b862214250e23b968ff6cb6d0edca1b12a9d26962bcaae32987e78f3518f05058b16f31c",
    "signer": "0x4B0a22A25ed0c580309e8a5565722854C6b7873A",
    "userId": "308261833"
  }
}