{
  "manageEntity": {
    "action": "Update",
    "entityId": "444019255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb4dadfecdd8dfaead8ef9b55eab4d0dabcd031b64f7fbce85ab1e9599dcb452",
    "signature": "0x4c1395331a6274d4969b6396f1144ef3cfe51e3564f9d81c0e7c7ebb2905787e16b66e48c578a95e5e4dffee34874a441d2a5fe3c2fee79d61dc6fcf75c4b5fa1c",
    "signer": "0x2c6557DFe21Ed7d8Ad3635965D6Aa4Be9CCFDE87",
    "userId": "444019255"
  }
}