Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea0a64e1c1ab3abf18eb557c18f06cf8f18d549716b6f17f1960be2f7a403084' 
  AND token = 'xaOH8PETHKW9/x9vLtY8WtQnfYcJOCYyG/PDaZ/rvKA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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