Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '78541025427b722b356f1b6848b5229320d755f574b9120cec8d5110ac03f311' 
  AND token = 'vxI078kODsWL+a0A7ctaeuVq7mfG/fM8MYG/GdLrJOg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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