{
  "manageEntity": {
    "action": "Update",
    "entityId": "29967472",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe08b2cda1a49592976d6aa7c5be4e2f5226d557309d54420540fcfddbd3e42b1",
    "signature": "0x734e719edc088e4f6ad72c01c09e10060f1959ab40c1d6448ee740aee31db44d1972d7a015adf30fd059c589893eb421844f059fd42f7e9234a332339ff2be751c",
    "signer": "0x815B0AC58f1C3545B8a3d1cbF5640F1a317e11a5",
    "userId": "29967472"
  }
}