Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2f275da6705720bc6bf3dd14d52ac6bea0fd010d5c2b151dfb0d5ccce40189e3' 
  AND token = 'Cg12bAzOp8BUgxgrh94kboVCq2XpTYZwx8LIMlRk3/s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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