SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '101d6841a4d28b363241fd85b8e3593e9226819ef89012f88fa91b790508f706' 
  AND token = 'HtLBGoB1EEaJ37dgUZmFj8O3KaDww2+Hh+sBBXNLvgg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00056

JSON explain

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