{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13589021",
    "entityType": "User",
    "nonce": "0xbdd2637249bffc0c0f55205559e0a1e9db2797c0a84449cb038ae6d52650966f",
    "signature": "0x21834c4788aafc15cc886db6c37ea31aba58413f0bdc0e0e76b943e8747d553d5c1e1a8a51696f83d5df95aeee5e800456dc6d8808d546df5d86d1fe018044791b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}