{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x17c9bfc5cc4b79f5ac261a880768813f8587544d82f9fa7189dd45515c0193d3",
    "signature": "0x78a1dece4affce82bb8aec793245cd8e3b1b772bf0301b2a460d4323541a363e28734fc92aaaaa8cfe02dd491287e0e7d7c2de3a853a6d927dc5ffa982c41c0c1c",
    "signer": "0xBcEA83Cb21438BDcE191D7a11291C73614F8084e",
    "userId": "298675613"
  }
}