{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe86f04d154a9763be825be93560fc058939fbe95cb2f0c2f11ba520dddec4c6b",
    "signature": "0x7bd0f4710c6b06fd25086a653b8114fa224cf194c6ca20ea5383df19a945578d7434c983605fb964005abece8ee71e97d4a520c03ffd0acc3d0ea118bb89829d1c",
    "signer": "0x49818D2d4286c4Bf8474D6F948d2e4ED4f9CD590",
    "userId": "806888678"
  }
}