{
  "manageEntity": {
    "action": "Update",
    "entityId": "107999417",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb5de7102b87d1075ceb5cb17953eef30b0e15b90b820e071f5e42149adedd31d",
    "signature": "0x056e4c3f2e7e4c0465ad9a28377840c6794a3d4d6517110cdb69157b290bf937335d6df1808ce06fe4d64205e1217fc26694b7c316be0aed468c1ce94cd7817a1c",
    "signer": "0xbb8aEED2fc959D83A88CC32Ea637BfF46778037F",
    "userId": "107999417"
  }
}