Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ac841f645216527d1c7764a1b59c5229dde5915de5f732334ccb62968c18845b' 
  AND token = 'odpzKKxZth49S6xE0+CPUHyNuPpjfWCjtzSjU9ddY58=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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