{
  "manageEntity": {
    "action": "Update",
    "entityId": "841195287",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafjj7zm3vaki472qyiagthcgo454gdssl6jplyrob7iw7q4xcfvia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1646518397}]}}}",
    "nonce": "0x8fb9aafa721fff9cb0902747a1c6664d82f3dde38babb089324edc772e3fb0b6",
    "signature": "0xab1140ed067f1d9d7a32005eeaba98b0353c24abe45add4f836e9fdb792b1b1c05c98b8df9defa173cb39cf6ad5fefd9f31d056a6bb93d7f2e617aa17b6ed26a1c",
    "signer": "0x6357f7Fd9495F9Da96b38682398cA12fFA4bf604",
    "userId": "841195287"
  }
}