{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48676664",
    "entityType": "User",
    "nonce": "0x51df78697b6943479de97d8fb8fc3edda16988cb9b95e6105852f901f2cc505a",
    "signature": "0xb17161fc5635b841d4de24c13a0a85713f17c25e00ef22905103bd0f90160df67e73141eef5deff6b563ead4fd4c89137c89e481caa54f76e5d529d51daf1cf31c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}