{
  "manageEntity": {
    "action": "Update",
    "entityId": "175778563",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb6fd86dcbc57123a0d1449336e4ddd4919e09adf5bc95113f19f6f85a69cc2e8",
    "signature": "0x25249174c516b054eacd379e20239e8660153a6dfe3de26bdfd580e54c724cc473f0e261ee7947e2d641afa20d56dec2bb2d8a38a3a998cc9ddb53254cff4b401b",
    "signer": "0x06cF7317996b04C355166a1Bac5540986622FA4F",
    "userId": "175778563"
  }
}