{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8747",
    "entityType": "User",
    "nonce": "0xeb8d17a9d1f9b3c74650f6418a5abe9f86a6088a0ab651f1c09bd1f2e59896a3",
    "signature": "0x8a0f88c0193ad04fd894d2703eadccc11f6c984546e30f4ee97851cfdd89bde202e26620e6184bf0f14873106da6a5fbdbecfecaab4beb878aa2416c5fcf0df61c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}