Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3edcfcc65012f757f8061aaf7da58401f89abfa81018bb3e7600dc54ba6d1c0b' 
  AND token = 'UxmDASHeMQiGAR8kCY9IWvoGo1Eqlj5EmhjkmmFjdbY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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