Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab00ea02db9ae5fb9c72acf7c901ae638e710c2f969a9fae27a1efbf6d6068d3' 
  AND token = '1M08IecDL56OY9qWp6rcrXOGFe52mJwLBHxbC0o56HQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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