{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168947",
    "entityType": "User",
    "nonce": "0x9c56e4ee1136f1947c32b79dc19d67646cabad18a5c3ea11ebeaf7586e45a980",
    "signature": "0xee6a460af6986a95b923c57a8203ee3b0a39e707c89ef1a3c15f8aaacba6d6706129a682804d1bcc1dd7e43b706400e232944504a6a2eb2f896a742723798ece1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}