Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7423f1867ca43f0e7d880b3fef5a409c614e1f602576c7cb562ea2868335421a' 
  AND token = '3gRda7gwTQvTodUQT+CRDNeA6vTMPlUnDPl8Dahy2PA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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