{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168037",
    "entityType": "User",
    "nonce": "0x539d36e71c84a01f1f9c2370ba06dff452dd2f2ba00012addb4262d209a8d311",
    "signature": "0xd6c7a65bc467466ca2e42ba87a9e34e4d3d35407dbee24c239f238a8e099cdf033619eda40510e9d88fea8e04fffa3cb501ada45874c8b1fbfd66c2d40b916f41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}