{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "512197",
    "entityType": "User",
    "nonce": "0xb860ad5e17ec7dc140cb4f88b29e7173e63693d718c34e8c921d0b5e31527941",
    "signature": "0x0e7a99098248f8a4105ab649435c39828f55cb2934040d263ebf3bf6ee5534e268ea290a038d693fb388c72adeb6023da801aa403b3616744de1c00c3c7c2fe71b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}