{
  "manageEntity": {
    "action": "Update",
    "entityId": "357414",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierardddnx2sbea3kh5s4vg7mfhg6q2r6gin2thy3dtnc2v7t66sep2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":926090381},{\"type\":\"playlist\",\"playlist_id\":1591632332}]}}}",
    "nonce": "0x26823bb42d08fec68e08e979678c6ea68637a208b256f558cd633bda80676355",
    "signature": "0x7b5a57ad47acebc5f6b54ca233c84798711232aafbd05df5dfa52aa752b87b61264388efd42e53503992319ff88ead7f6a22cbcb1525f7a4b512e56f2f1327001c",
    "signer": "0xCf1FD635759e2a5202F6A5e9b4416Fc5ebB1028D",
    "userId": "357414"
  }
}