{
  "manageEntity": {
    "action": "Update",
    "entityId": "213183480",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc0b6a02a5b1864866fc5fc5ee3e73502660f54144f8d49c0e5594f0f06804a07",
    "signature": "0xbcdb98f9c557aed6d2465d8374a7bcb7137946e598a3a24b0e75a8a4eb789d7140b61399a86b08a3d4419511379044fee33fa29c31c1d50b5a0a31486f2ae08b1c",
    "signer": "0xdcFe6Cf855Ad2418a373cd330AF57DE96dAE3C21",
    "userId": "213183480"
  }
}