Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6e0bd2548bb4bba3d7fffaf6c191f0b2304e47caa13d57ba0bb463472d374411' 
  AND token = 'Lt01X3AYaYI/qbx+OY+GIV6FjkVyCjPiRddt+mEXZ1Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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