Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '31dbeda2a1e1f724411eee28f4487e1672558715426a80d57278a70b2c45092a' 
  AND token = 'jgHP61pguDhbSkSl9PYsYZJYuU0ZU02YwrYzYY9Z6/U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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