{
  "manageEntity": {
    "action": "Update",
    "entityId": "477934274",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4t2c4la76i2w3xx5htzlj6fbi74cbdvthhs7lgknegqdudzjw2fq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1045320063}]}}}",
    "nonce": "0x2376faadb97e67465439527b1dffa4f3881ffbe75e800a36a20a375634b6ad33",
    "signature": "0xee8b86888e538b1e70fba05ca66a6dbfd70a40d32bf6eb9398b491313349a85048fe25fccf9d9dcea0008e577d615e1fb2b59eacf23eaa500ce50a877603595f1b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}