{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x482b50b4b490122ef70cfa53103dd0a2cf87877cb64db5e70e40b5297b17599c",
    "signature": "0x80e7b3d7d2602cff714cef5afcf1e9a3d6e67acdcef69e4179a3457b991b89ff058b8a5619cc212079dc541150cd9fc1d949c41c9a02e50d408d684d3fba23b11c",
    "signer": "0xC9866D853e719f7e14143e013d3D634a1Cdd0bAe",
    "userId": "218112406"
  }
}