SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0e98d850d50d4b3c245839f6f2b3caa26d6d6900186b5d146457c75a2445b586' 
  AND token = 'nGeHqlODJeWn/Xhba/JW01rBfZjZsA9KTp1wIKOsBN8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.88383

JSON explain

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