Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c018d970c3991106b26bb2f1d3e8c22acf2e9657f58ab4d7d090b1714dce1dc1' 
  AND token = 'NrrYZXWm639GKfC4QCxJNO3GTWTOJAJQJJFZoqC/zu4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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