{
  "manageEntity": {
    "action": "Update",
    "entityId": "347056744",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5fdf9927deff655165928cf3e6370cb052b15ab75c4b8b3128204995885d61ca",
    "signature": "0x95bdc4bec5c608954ec50f3c177f000dc6953ee0f081f7d0ef3100970df6c9ee210ac3bf3b482f3d50cb8dfb28b7a982707935d01f000b623e67fae766ab0dd61c",
    "signer": "0xAD64DE85d51a9A1F8e9E1D46641d088C99419941",
    "userId": "347056744"
  }
}