{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa6cec3e4899a54b05641ec4519e524a243e6c4d71a56e594a3dfc7e42b859308",
    "signature": "0x5718a8a6dc998c198644f2004d6655b3e94293ea73096298a57ded71aed3e76c6478a407c9a1d45001ebb792c419d01353703202f724a270fb5dba71923981f31b",
    "signer": "0xDd1895e30358586EdF6fe231496fA9fFD0C1D406",
    "userId": "303232693"
  }
}