{
  "manageEntity": {
    "action": "Update",
    "entityId": "3636854",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraiccxmorchwxsadhfwpokaspkffyfb4wlhbftrxca72rmlcsyxseq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1369700879}]}}}",
    "nonce": "0x6476729a21b9c6677e3fc5099c7c3cb53af24b808d7684e6db32272ac977672e",
    "signature": "0x624a31e71d3ee94b7e1093cbf5f2c1f14daa7a1efc27417b1f310d4a8acaeddf13de4ab86e7680744c0057e891070d22e6192e04d4db7da915c26f72fe59ed471b",
    "signer": "0x2e9d3CE541fF1290944eF388dE9759d77881dA4a",
    "userId": "3636854"
  }
}