{
  "manageEntity": {
    "action": "Update",
    "entityId": "17650639",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6ff35285e17a137e7cf5ec20296798e1fcdcafb950ec97381eb774d2c58089c3",
    "signature": "0xff21e264cf26149887671b3205acd510e3db9c38f5ed6628d06494e6ff00d9672d77376982e647dd1dfc6a6e882be4c53a0dfd4490163310d4dd491f97c0a3821c",
    "signer": "0x03a5617604EC11aAD7D3D36c89fAc3EcE81a3c1D",
    "userId": "17650639"
  }
}