{
  "manageEntity": {
    "action": "Update",
    "entityId": "189995856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5ovbq7sexda7u72qvtfompkiilnlc24znsu74yu633p5neflskua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1716881204},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xba97d33b27b0fcf2dc2be408a7262131cf2587f9301d831263cf35c29da3d71b",
    "signature": "0x8b89385ba194f2d148ae4aea962edb80129e419928075cbff8bb10d3b6ee5a49184b9cfbb8fb659ea989945401864e0ce884f57df4975bd79d1df5d9faf77eaf1b",
    "signer": "0x49ea1963bD0698Ba4421742478714fbFa38E0719",
    "userId": "189995856"
  }
}