{
  "manageEntity": {
    "action": "Update",
    "entityId": "943161575",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8e7fbd030673ed042abc3c3a0d5b45e00872ad62d093872732ad921a03f870f7",
    "signature": "0x52e4494239bc428be2ad143198a977d8523a8b49e5e269969528fd1dd1eb9d6722a688ae512b5a5f76f6d0f59495c2dac82f4a8157ee67620879473d5891614c1b",
    "signer": "0xe7e47058Ef107Dd487fb56Be1b71921Fc239fA0c",
    "userId": "943161575"
  }
}