{
  "manageEntity": {
    "action": "Update",
    "entityId": "814929010",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazqb7apmc7azt7w47ygg22iellrzij47mjgvkv3wjvqmt3sj7dcaa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1157820743},{\"type\":\"playlist\",\"playlist_id\":1306709195}]}}}",
    "nonce": "0x3b07ed0233faa0f66844a18892393b84548bede395adb7e65ecd508478737a3f",
    "signature": "0x39b25349f9bae7cddb53fcef59dd6cc654a40daff3d624f70ab3ee545ee3571e045dc71ca5e4dbaa6a2fac2d7894e3190c91247bb2dd48fbe3dfe12f9e82a7561c",
    "signer": "0xEf3d3c6df875c67aa35e9F473e01a47D659c95f9",
    "userId": "814929010"
  }
}