{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "371812",
    "entityType": "User",
    "nonce": "0x61e446cffeecee1028b6e50427f15bd702fb42dcfb64ca2a410de27371d6feb5",
    "signature": "0xc87fb89c3fd236e4e5d1dbd490ab9f98a18fb092c037ea6721a297a486a9721d63d1577aff26a95a70a79467388bc845a56157ab58b7e94d4eccf0289133e9fa1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}