Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9e29ba773505ad5ec4c73b3cb56c55a855a2d264a1a5d9952ee912dd6b7b89c4' 
  AND token = '10crR03U9d28QZrmSMj2OcsXKf/Le9gbtg/w2aJams0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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