Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3604aee6d1db9d65bd49b6e0d57d321850b67f748fb8c70b3037e17a93a02161' 
  AND token = 'NWe580bpv7BoOzSmzBySr6QNwC1h92xc2A5lXPvZaC8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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