{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314016",
    "entityType": "User",
    "nonce": "0xf8de737f4da6e21b56a4a812f94568b0c12930a76e16e200f5da4feda9b07d68",
    "signature": "0x366fefdf650f96a27c1a5de31b32d8223736fb0d34405061eb3c31e4e8ffa44d1dbd1ece002e8f756ceb7d11efe7b755aa906dd951825a294b16cc82f598ef831b",
    "signer": "0xFF2527E6A1Ea0651d212A131Df20a0352e21a5f8",
    "userId": "520227443"
  }
}