Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5e96e289c03b9ef7b4f38db916e99c507861fc7d067da984d1edd1ef9097d35c' 
  AND token = 'OMmDFxNGRVosrwiWWX/INPPHxCQAnvLLj98hLxo5hoc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}