{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64702",
    "entityType": "User",
    "nonce": "0xe8067bea58076be945069d28f05cc822f9e7aa3a749aa570461be9ad0f69c1fe",
    "signature": "0xf865addb80cc9bddea23b174f5707b4e5c46d75fa3d50e3bbebf526cb7c8b1e31e9ef10d6c72e4cde37dd154cf29fb14ec15f8d1ffa728dc833f70161c3ab14a1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}