Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '210b7dd433a0dd887ef735cad673ae4aa416e35894448af66a1629470425206e' 
  AND token = '8ikkxV6N3nYG9AHLf9GPpOh/8uG5UkuMMrUPJ17Vsdg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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