Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07f22660876274b87a002d467fd8fe197b8e58f5f799ad4f90134a47622f68af' 
  AND token = 'fFzpzu58GfdEjB2mG8LVj0v7Vw1XvLKF7U5gNDCFTzU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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