Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6aaa574c207065048dc98c1b91e0c017d2ac65c9b0026024d745c1009e6066f9' 
  AND token = 'IP5nTIzrqG5pMmLABbch4SOivou7Mhpot4HWJWAnrK4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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