{
  "manageEntity": {
    "action": "Update",
    "entityId": "814219368",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3s3kneysqjxxim32wztxecmit5ibuluiwmwbpyvzmfkfnutcnafa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1602505645}]}}}",
    "nonce": "0x4373a2d8cb5585075d86e62a9d0fedd3b09e7cc86406e6f0390da17b35647a33",
    "signature": "0x89cb8474597f00ec2050273e6bffd412d55382e0334b8928c79953cf778e49cb48927c5ab70a6a705642e05c585085dfc46cea8e760419f5fd35975b737304891b",
    "signer": "0x08651aDA669DCD439D703808e8542273F08EEc4c",
    "userId": "814219368"
  }
}