Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9181d5c714ec9af9a410474e08362ed6ed5aaab387d74d73e333f9c42193800e' 
  AND token = 'lGlK2jU5tFSo5/aXZvr2fwJtvR7H31J7T4a6F8VCecE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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