{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "904230991",
    "entityType": "User",
    "nonce": "0xdf2c51702b9b7fe6ff02cfcf8f730c15aa6141e2dd27d4289884d64ca0c77fd8",
    "signature": "0xa47dfd2f539a3208a81ac79a49cf9718335e5c9314034794710d4b91c874221d376dce33579192485d5e19bb71fbe349ad51a34a359e8849fa602422735978dc1b",
    "signer": "0xb4E73C0642f86aA77C366Abd94586A5810D73F85",
    "userId": "727783207"
  }
}