{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8411",
    "entityType": "User",
    "nonce": "0x204940c7c01132a396815858ba49485242c81fc6ff48d5894bafa8c4c6f7308a",
    "signature": "0xb2d1a0f665facb03906080a18fd633eb7873e2aa1ed3f376ff4c6ef05e97eea342d437a689fc8e774eb4dbfc4d4fa31333288132758e953b5f21d0b7420f96d71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}