Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0317730c3d0d50b4750da48a64194df969119ffbb2e8ee5732ecc4a82e7d09e9' 
  AND token = 'vbwwOo1kNROUBexaws0ju2gRHnPo0crfYCJ4wpB29GU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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