Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98bd88a7fcaa311102632c2af48973188dda1e59e449533982b7e34f707b732f' 
  AND token = 'bs00PQST+WlaMrP4fafQKa+cjgS7ZodJEWdxoIloJQE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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