{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121458",
    "entityType": "User",
    "nonce": "0xdc547551c0e2ea794b1fdb06e1aa37b7921e4d8b53c17d18bdf1d5e7aabd3793",
    "signature": "0x8efb953158493abc5c2e1c995f675b3ff8bfc17a759b173dc503bc1162dddb1d009f78f5f7634ece13d82654253ac441ce6927caf9fbbd1d8e35b1ebe2ad16671c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}