Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'db20bae6c26c578cd988067645fa2dcd77ffefdab4d267add56613c69d95dd5e' 
  AND token = '3i0dDCO0utTSY/uj8RQPEhC/nGB6EKbSout6F3PHsJ0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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