{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775061486",
    "entityType": "User",
    "nonce": "0x81d3d87638749db56584633ef9ddb1fe8352f3c955c50af5f942189e426431c2",
    "signature": "0xb7e91b98a6bbf203a3a9b879e87cf6019d381096c5f1a453d3683aff406e635a6f6ad920a2c3e6424f83ac13262acfd3912d9c3526782ffa1918169d71b2ca9f1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}