{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1481230",
    "entityType": "User",
    "nonce": "0xb67c58f448718ce868933392e3c4f9abdfe8d681f11764113acdddfc3cf5958f",
    "signature": "0x42415a705277a02e919ebf918645e2ed3628e90800d8516990e6da4a8b1b2fe260bd9583b96e758f6353d072a40854bbab5ad145836cd11bafefd08d78a328341c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}