{
  "manageEntity": {
    "action": "Update",
    "entityId": "130115435",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdff20e354544b71b2326187e9f012bacc78064f218a4bb437e239a32fab17df1",
    "signature": "0x44d2873a3c39a02fac43006b886ef5799669aada372775fd92c0055fda2714e6479cce917be5b5fea6249f04fbec13f61063fbee126474eca1b299e6f7022d2f1c",
    "signer": "0xE319b8e64EFa56bAC1ce42cb8A54D8B3ac1fe34B",
    "userId": "130115435"
  }
}