{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107190",
    "entityType": "User",
    "nonce": "0x3e2a145e92dafcd729ac314d2699b4ce3c2cea0191cee83c7712309a3d0b9cd7",
    "signature": "0x5bd0508faca5e6d9be950c36cf7acc6d7e9ec60c1039166603dc649ce64f5dfd17d0d855a00aa54b93e5d099d812425086f5524fee93079064a5794259ac70f11b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}