Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f4ca227fb5add0c60b4b18b8f727f42f67d2f57b59bf7a1d756295cc09c6585' 
  AND token = 'd0V1tBloJAUuiJHvw82WphTmqG9Q5uiFzfMOPsePEA8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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