{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x03e05f53ee1cde8f198d8542a4417bba9ffbd8a49aa1c511b8ad77a8d62b7491",
    "signature": "0x9b162b6f1fe3d1c367a96dfac55af3c4c72dad9b30c7b4cb0fe886f68515f4f70371fdab47280f6f8933c211ae9f9c4bb91fade5abeaa7b6c9da17ac7b4797991c",
    "signer": "0x14692DD18b4510C50508926E344E5542451bf0B3",
    "userId": "633625709"
  }
}