{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0xa544cfde94933f8a85c0f3bfe689738166248d736b243cd256be397a63a03a16",
    "signature": "0x0e29aab6752c40ab778b411c905354c909ea7bc5fb881bf01c49d22f0046d06d4496a681cbc0943629faf8027856d2a213007de23c5375004f975c04bdc4223d1b",
    "signer": "0xAEc4BA229696a4DAe2125cD32943943AaCa0CaF4",
    "userId": "354024696"
  }
}