{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87454",
    "entityType": "User",
    "nonce": "0x0b16e0aece96b44f5ce07d7ae74c92ad83a4b5512dff907d6c5f416b5ea0791c",
    "signature": "0xe0ff66c0e53dee53858e9381ab7c80285c4696e8c040b7cbcfbc338e80c2f8d464970ab1b34cf9f65d7c16215233f991fcfb49f8893329799abcaf14ce709e251b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}