{
  "manageEntity": {
    "action": "Update",
    "entityId": "406552185",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe3ed3e7daaec8bb88f1d859563f17c3ae946010fb2709f47611bb27bffe0a216",
    "signature": "0xcb2b6adcbc260033ec1894e699a1ae76c18d454e127a3238e500ea4ee177f4b55f236960e1f8810de23bacf5821967a79ebaa0ce0c4e36255179e4ea689b792c1c",
    "signer": "0x6fAD04D38FbC1C81E6C2007cffCa1A7520b7DCFB",
    "userId": "406552185"
  }
}