Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13c6f145fab63c7a3bfcbdf50c39fd7dc238fd59f150472beba3e0704230ce21' 
  AND token = 'tVnXOcRppTVr62bDj9AoVm9jBG3vtqVvAO10Ub88v54=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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