Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e5338736dd2029ba089746e13beaf1fb96372246682500f10c97321af5a8dd2e' 
  AND token = 'CyKPCb98Ivtf7lSvB5bIR1Az+iXWI8H9wUYE2TFBvWU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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