{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66423",
    "entityType": "User",
    "nonce": "0xb038a389f1ad9f54c9761d76eabe378674cbc79e7c039e80f532ea2c66b9903c",
    "signature": "0x20be82a17e25302266d93caaa5c75474653a2fbff3bcf1f53590bd78e46fe5e3267522c3d7666733d2cdebb38e86b34a86b8856bce4a113b9b49e16080a76bc71c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}