{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4efc207c96e8f0373e5793eae363842140b05946e8751bbd7bbdd5ce765e8191",
    "signature": "0xc8ed00b01d2cfa5c67b7697ce7093c90b135f269dcb3cf022ad56537c60170ca3d21cad0e5b16c88f3987f86c49fb3714d58d9d81b2ae0100ef128487e8338de1c",
    "signer": "0x3a4A0b0E56afb03E27Aa24F1b0097dDA38FA58e0",
    "userId": "927391620"
  }
}