{
  "manageEntity": {
    "action": "Update",
    "entityId": "870901302",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c9e2aa2b5a110a40eeeb2cb902ef83ac4127f4b215a25179750c396747803f6",
    "signature": "0x3cde3769504709cab4d5c65bcd5dbcb0808b77bfbdd35d51f705a918230331430fffd93f313c2d71787e6c50194ea8a3e188fd25e00a2844850a294a99f55f6e1c",
    "signer": "0x537FeA657eFcF11815a94831D95e49f18F0250FB",
    "userId": "870901302"
  }
}