{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327048511",
    "entityType": "User",
    "nonce": "0xd733fc98b70e522de4a331de0be3aeac9fb10432312e408ee475fe1ea3789a75",
    "signature": "0x4c16575b8d3dcd67d42dea1bcf065ea58449bc144ba327561e2dda298c92938d16c28a35ef78c4b73cb0fe220c8179c3a80650d24b1c9c5f4125afe2b1136df31b",
    "signer": "0x43FB3FC9D8Ef17aD9D2f41250bc75809a3D035Da",
    "userId": "593031615"
  }
}