SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0a32baf8a758f733490ab14fbbdeb49eef1fae7fab230a14b8c55236f8fd8260' 
  AND token = 'CJTVzhxcL6WZWa1HC8IGKdzDqG/8eBgx66QznAo7SlY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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