Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25b21858580338443fc2bc5b0c1f9d3aa75caceabf91e0d1abe64228dcf72d06' 
  AND token = 'gvFRay/VMb/v7n4nzKPFOkJc+x/500xM2PN/KsZJDYc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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