{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x16741e88cce3ca49fc9683b7072fdb2df4ee2daff9d9856b0195e7db6758e513",
    "signature": "0x32ed9248056ed00ca341caaadf10bba88376aa34cf7dda44ee0c07e9d98ac5e707dd252d7816c0dfe653fbe89f12d4b0dc0ad08fc4b637fd48d29ceab53d7d9d1c",
    "signer": "0x814e4D9A8DaE5B1364bbA708C255e162093123e4",
    "userId": "694060046"
  }
}