{
  "manageEntity": {
    "action": "Update",
    "entityId": "989872825",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x07ab8bf6539a4b09c7ca9d74d1e372cdb0b8503114c511fa010833d963bc5832",
    "signature": "0x754fd74ca067fde328b3cc76924161226033f6d8af55d8db3b0c35ace14fd0c677c953e0db5f43fda90f9dd25d217a2d3bed0933bf043356b8cb37e82fed65911c",
    "signer": "0xAD45A52ef249C023fc6A689d00138eA08Cfd081e",
    "userId": "989872825"
  }
}