Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3a63b7da7f38e9ba21309b522dff0669cc21f6794d835f71dce16617acf9c5da' 
  AND token = 'x6zuER9/1mkIzx4m1wRfvo85vig0gTgwwFRnaPD2nMs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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