{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "625268953",
    "entityType": "User",
    "nonce": "0xad4171a80fb5899588d1fe25799d0ab66638c1d9bb8603a65c997ef8c3bdca34",
    "signature": "0x164c28751bdd8bcc9f5c9fee054e51db912aa5774424dc49c8dce4efe15db65d453b3d7fbf95d9dded3affcd08bdcb135993a9eae1851677dea406bb3bd24d951c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}