{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77608",
    "entityType": "User",
    "nonce": "0x4212dd00c361acb3ddf2dc538d66d573fa223c93417f90c50535baa74bffc87c",
    "signature": "0x0bf664cde3cf5eec023650d6e8f281be8297b1fbcc57340c717b4437642d4ee676363769eead367e5c1245a5da175b603fa6e12974baa755f18b6d76db6d726c1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}