{
  "manageEntity": {
    "action": "Update",
    "entityId": "434221292",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa9825399779aae1bce96fa6488de07f02d2c43e7359a7795268ac97e32161bc0",
    "signature": "0xd9678bbf6cbdca1db9846a6c475972fe13b69237c1ea66f36ab21b2a5b61342a4dffa9f745efbebae88ab14f210d89eaffe0e88ca7aaa380ffa5489625192b3c1b",
    "signer": "0x302F85f02b8ae7F2E519eCfE62B52372AFb09892",
    "userId": "434221292"
  }
}