{
  "manageEntity": {
    "action": "Update",
    "entityId": "318244892",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x22e93a2a23409ce44b155b1d88b06a272f39de66e6126733df017298a5d557a6",
    "signature": "0x5192dee2414d24c18e4af56cd1a7816a3d3da38824e5fcc4020f60a1cc0f98b71c41ee7b2d86eadc529d1601c5290f54b40bc77de317ed1f58253e9497c975471c",
    "signer": "0x682672e68d8A09C926D8a93F5ffa96EaE999A9d5",
    "userId": "318244892"
  }
}