Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd058926ca75008ccb1e2d4e6b24da4e8ae00512f5041b2c72aaa321558e83c74' 
  AND token = '6CKUywgIsD0qmBt9krvGXcxdUpKWU6LN1/7qdOr7jNc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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