{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15682",
    "entityType": "User",
    "nonce": "0xe0bbfa65d8b850ccd305a39b15498575906d57a075cf4069f23bc95d8e197206",
    "signature": "0x623159c73327280c2b40971b55458d12f0ebfd6813b1960455b08a46c9ee7c86078f0fdc722c5fb33acbc6e5b35b6c047e1cafc00c919a037117c30b8fa61b871c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}