Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'faf2f6c6416f2327e1087cf367704fbf60d9f384ad4999fc7477d0105cab4ba7' 
  AND token = 'Pu46Q20xxZlkoZXRAjWLoXCDBWbbatIaPFYlEgqYF3s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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