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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bee35fa1cc2ce65ce1f06c3edf3429d8d14a74a4beb77a93fa2c8e163e401b58' 
  AND token = '1YgM09V9V1mY/skKHhJd0BLjapHqOucojpU7DLiJSdE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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