{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75506",
    "entityType": "User",
    "nonce": "0x4e678f9391c3343d9148db67f416de78cb36d3f6cda731063bcc3f2ad0e19053",
    "signature": "0xb038dd9a5a094ff8b5181c3cd8da5eefd6c9136d370a804a9eaba577d7f751984cfc146a5d4b7d7a7bf78da52f0d238f145959357405b5500da1247a1ad077c41c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}