{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0x252d422c1cab2d125feb56325f65b2974696c5e3cd23c140e9aabe09cb053cc7",
    "signature": "0x3a82f74f424513205e2127b5305be1e6f1a4d20c7745ade4a91e6d33b6b2c1dd4bce14f5e05e80fb9dac06063d653fe3cf1d04afcba7d9138bc3bd7615408c4b1c",
    "signer": "0x12EaF77464824447aA995e75Dd707B3e5246be9C",
    "userId": "409175645"
  }
}