{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x79e7a5e9e1b7f5247c3ff86c2f8671123f8032fb2edddb99013ac899eae378e2",
    "signature": "0x820c0409d6eeab8aaeef82ec7adc06b022bc034bb866cbc53dbfb85858924a1a40cb6603f4f15e31d9e312f390d7831474782250dba412558910336dfea26f7a1b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}