{
  "manageEntity": {
    "action": "Update",
    "entityId": "18002392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayu2mwtz4n77eujnembmai2mu37afrjyz25vbrcpdy5gyly54fema\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1608367466},{\"type\":\"playlist\",\"playlist_id\":478691610},{\"type\":\"playlist\",\"playlist_id\":18501855}]}}}",
    "nonce": "0xf5da112f3bc2226b94eae9a3fa6a0a90bebf4b4b7564c08d30426db89c11afcb",
    "signature": "0xb024a7c77034c6fa38fc66a075e56ed7f14d2410dcf97e271c63618c70e66e6e7c0fb0f3eba9683031c0d3b56479eaabcd44070673e50e6e4752f48e3c9666081c",
    "signer": "0x7Eec440C3674292A66f7e20C5E6efAeaE5956B9a",
    "userId": "18002392"
  }
}