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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '173bc5568f5c6939a77f75737f12415066f2d4c0138b0182150f199b62b41feb' 
  AND token = 'lUgINC/uGbMIVwtN2Ll8rmNLgy1btDJ1yvtZ9MOHLJw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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