Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '007b656ae100214f2ca04169289f60c1ae4371b7527883b83b6d97c9c475d4a7' 
  AND token = 'oCQGXLfl2Gow1BX1JBb8N47+b1THWPIkPTDOYFX8Lsk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}