{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x4d1d8dae117c1c628c1b4eaf3097d385b8d7c9d621a107c0c0cc2aa3d1206ab7",
    "signature": "0xf303e51b0cce1d5174845f5d5527d3442f7fb5c8120b08ba62568729d65bb073078aed08ca858b0ddfad668ddaf914ccd1c4725e297e21bfe97f7da43319e7d31b",
    "signer": "0x134f5c1f8716402474824c6A0AE855af1E3053eB",
    "userId": "462352719"
  }
}