{
  "manageEntity": {
    "action": "Update",
    "entityId": "703058535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8994a0e079549fd56717b594f404775c3bb343858d4bc6fc01fc099613d9c8d5",
    "signature": "0xde8b83519ffd8bf81ca4c768215488124de78688f6f3f17a0d246ce3f72cd40e45a6ad7964c50540b5824d0c87e1d8564f78e3ff0ba76464232f2daeba7408801c",
    "signer": "0xfBfBcf7A6505b548A89EDd67e15c6267Cc972fe1",
    "userId": "703058535"
  }
}