{
  "manageEntity": {
    "action": "Update",
    "entityId": "909822926",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakkq3tkbtql3xik5lp33kext6z43r7ekmi7nibfn54k24p6p7uzgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1126518777},{\"type\":\"playlist\",\"playlist_id\":118958},{\"type\":\"playlist\",\"playlist_id\":4357}]}}}",
    "nonce": "0xb03dbcd60518579ba1bd81548a8a0dda5faf8d35495b8c4f0efc540ed253d193",
    "signature": "0xfd742a3445ceb2a508942b50bd0b77f4bd5c482c07e4d5d86343699c12561e6009b8fe289f0d7420b9606b2110cc0dabc4a2087202dfca249a0413728fab54761b",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}