Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa33f01d1c585faff33860d08b1a2af1eea55a2d039a6e0110942322acd6b75d' 
  AND token = '3zsZb6LQVlqajgUgRsonnGG8IOMZVDqFv2VUx6YmLoo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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