{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1b641aeeae6461f68d7c0bfcace37900862c4707f7fe19f934bb610495380f3",
    "signature": "0x1603be6a09ce5c912e98462a5fb4287cd9f0294f48bb2ce2fd6feb31783e13123c98f8da787741e04dbbbc5ca8576dfc5de73f7556c6d48ce7ca191b26461c7c1b",
    "signer": "0x67624584509370CA75D534f8F61382DEC0e38fd7",
    "userId": "679049141"
  }
}