{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbe606e9ca333a964939e37b1f1a34038810d0a4028e6a78136dc137fc7de49ef",
    "signature": "0x1160418c57f5d609a7abd127912fba7a87d59238a422c6fd0ddb7f74d28cc2340e8a1feb7570a333b9c549d53768a53a9786dc2e497eacdd29b68f8232397b6c1b",
    "signer": "0x1904a0f8fd3A6a7aaEBb8c7BF116CF78D197362C",
    "userId": "253974099"
  }
}