Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '351838e6b947d2d694e20529f7e48d9a29ba5173a186512735bd5409f7ee6344' 
  AND token = 'X1bhp99lpko9zqjSk74s3/Q2rg/tAif9xY3A8vo/IFQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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