{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0xa4b65ad11be99db6249db0d16f9e879798c79ca43a7deaf376eb6872fa280773",
    "signature": "0x31323b75c59a89688c3ac6abdda4bba01dab8929ba61fce1694b33932b66a6125c2171a88e84f71ddd7692c16115dcbf350687bd0e2ea53eb822c02733fd00271b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}