{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x2968e84c3809d37505c2093467a10ace4098683671ffed43acbc0abf59c3a03e",
    "signature": "0x1b7cfabf4a181e8df1c33c51d8df5e4d7b885b2004303720e94466d82eccfd8b00f1790bbf9be9c57cb53b3e6cf74b633ca7dee33cde794793436f9815b282731c",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}