Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8010c518be46e246d2054923fe7182b4c0ece295dc4d3934d7b71c86d0f50671' 
  AND token = 'hpSVxY1oxdgY1TfmkFPQVRRNF82hkEEmWYJfj5sxb8w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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