Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9349111343d2e390836964bf182328b7c1a07233c5631b54bdd5e22ff84b3b26' 
  AND token = 'drjEkgqEfeQrhpZp0TEAePzrvTEJ7tr75H0VBsRB59Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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