Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58134c06e8ab6dd8077075fe81892ff88c2ef3b65aae7c945652edb74e3ad48d' 
  AND token = 'TKIouD2y5czWRAXcwuhtzeUCPSZr4kAS4RTqRcqjHfc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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