Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '107b8ac5363943fd9708dfcdcb13930789f35619984f66003b39a7555b5a92ce' 
  AND token = 'mG7hQ/TMZgTp88duQfyiywx78Be3G52oBK5Hkx9nZ4I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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