{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314016",
    "entityType": "User",
    "nonce": "0xea6e6656407611b8786f6c573591d015eb4be96775c038278bdce91b1d48dd99",
    "signature": "0x76f975383e3cd3065d11eb15c560c28947aa4a3435760244367bb097d6951063323ba29f06bc6578643e85f1598ef600f42b55acabc4e445fc3fe262c826b7601c",
    "signer": "0xD9A81296607A057616D2BdFEAa51375208b7fbc3",
    "userId": "343798350"
  }
}