Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ac32c69ac27038b6f914474c078ccfced599d40663e1bcf61b7ce05c8f2507e7' 
  AND token = 'Ly/ATtMdUlyhkqCWauGe4oqwMWBiFUCHkjmuKh2VUAE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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