{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372587631",
    "entityType": "User",
    "nonce": "0x6262838819bb1c166fe27043547f5a52c4033dc3cd4b2fbff18a8ea4f1684d73",
    "signature": "0x8d6a16081c8df21391e6a8c2de616a84691959ee465cbbbfbba79d3ce37403b605ecfaf5a307dbbec80490abae278cc30bb7d6608c8da35179fc5480817599fa1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}