{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x143dfdd576118e8b3478b6eef0ac27112f6ea8766cb3863d25e32106202363eb",
    "signature": "0x2ef88c83475c424d78bdaddf7b1e3293543649a87b3a7eed426c4e795e9f2c8925322ba952e37db7b99b4094544f86a997e7730c397154e28c2777c64ea7ec481c",
    "signer": "0xd832cDDE8Da519b6aD56d440c66722AC65cc18C8",
    "userId": "755155896"
  }
}