{
  "manageEntity": {
    "action": "Update",
    "entityId": "944117628",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x823c174912c9eba6f726da653ae35b80590905c3b6d83e8baeaf02121d9b3792",
    "signature": "0x6148a2b1379b9b0709cc1ee0ef83576da5f148eddbcdce9947d21aee2b4f4739087ca8c0010cf8bb65705069d0142ace389311b243f3de0642111daa8b6316c41c",
    "signer": "0xBe9B6f5cb472cCcDCEFf1f823a3Ec32D93CcF9C1",
    "userId": "944117628"
  }
}