{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211108",
    "entityType": "User",
    "nonce": "0x58923714ebd232ae069304ec5e5f57f4128326925180fbf02e510c770e675a5b",
    "signature": "0xa8dac8ec0a92fb2d402e417873beff76b5b90d81b6e11ea1f1ffaec8fb30f9d07b590f194ea4136836f5cd7ac40d7fe07ba3d395dc846d20e761709dd4b984491b",
    "signer": "0x74fCC8A9A86732235735AD4bEECC08e570ed0373",
    "userId": "353982286"
  }
}