{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd201fa3768751c55ec1f34cd4aab9c8614cce8abb5e0f2e326e2d67dbd8dd00f",
    "signature": "0x1175815b14daf1513ccddcfea0a4d8f0b234e77a9457a8a24ba082b85cc30db32fc9d28de53613165f9d83443f60257c55059ced094e3127888f6e2df6a09fa01c",
    "signer": "0x94bc1c80B21F7Fb76e4907b0e895E3D3fc46e079",
    "userId": "564864898"
  }
}