{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1707",
    "entityType": "User",
    "nonce": "0x16c67e9a36bfbce9a0faf22c580c96f32ca3be66017a36396e4a4bfb7e695a2e",
    "signature": "0xf199da76904e5ec67784140c07dfdc996ce114252bace7e8e5f97915f07d7a9b20178f1210bf7922acdc9fffc92c7b6fa54e55ee211b41d6fc56ad62b3b2e5111c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}