{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1abe56097dcc6affa15228010d48804088eaf7ff4565b08acd15db26501b1483",
    "signature": "0x2fc8ca9892ffca2501bf86b37b95356ff0de84788b34bf562d93e5bc5d2cb5702b66dcdc1f9c623c5b6ffcd87e0524820bfd0ee1bb712e2e170f79aaeba555031c",
    "signer": "0xeA573A0dfaEaF2b268ffB97059EB67e866BBFA9d",
    "userId": "705358589"
  }
}