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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5d111b8d44f704920d0980216890409520c90fb2eb50a19756c66dc11cd52028' 
  AND token = 'DljjRcp/ali03bzux38fPncv9D4qOAjBcW6S93q5i9w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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