Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd179123c378c8457ce75e9dbb09546939ebe713584793a44f4b9786e10c650b0' 
  AND token = 'jncsYdDhHaJoENgx7kTDvhDzsPWDAgL3QXZPf5Lxj2I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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