{
  "manageEntity": {
    "action": "Update",
    "entityId": "787787230",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3536318c8314116fdc7b84928a4e6780c82ead28620f4198d6e9420ac0280d65",
    "signature": "0xef082d0eb60fb40eb7fef226d4d8cc8d4fdec45d186827920a4e50674a036df163b7874bc56b5ce7a55e85927f1f96884837cf411a7739065e2707352be990af1c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}