{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115712",
    "entityType": "User",
    "nonce": "0x5b2c211a843e4b218fccdcea5bc5d3378b5685f711e510723915ddd29a9cba50",
    "signature": "0xcd15e9e6d92881c9f2feb1e44ca57c438455013923ad710f63f4717ba7730b844f5f8d9799f7a3b1496e9552123a627f895016421af56f5284d13570659fe09a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}