Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eda570332311acd34dcef376a5ecaf25e450700f13f9ad5b06b57f781b640f7d' 
  AND token = 'W1jiJOyOh9c9wmc7OsZkzUlBXnT6qf2UtJb4SBWcO7U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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