{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbe127d7152fb35607c5792f2551a5bf0955b578bb4fc1b50b609ebdabeee5238",
    "signature": "0x401f2690cb5dd7bf27606ba930724de124a415355e4cf8fd7478facad773aa6b0882ee65996222f2202310fa5123ad96ad020f8a479f7abca631e891a48860841c",
    "signer": "0x259e6a7eabf6077660Eb424C8E99938f57379624",
    "userId": "144354402"
  }
}