Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8e487264b1ff52eae3eca857eb98f16ae2838ab6a12d7481dfc51af90a501afa' 
  AND token = 'DuiHTmNEGAaWlFoKi9apiGzZyG9Y95/JrLPpVTsaFI0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}