Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4079d96ab68120405a6bedaae2091b2193aefb0265edce041df41cf8d25d430d' 
  AND token = 'qnkgSNHi7BzCBlQoyiyYtUwQAxcaJUsc0LXVeNxk6o8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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