{
  "manageEntity": {
    "action": "Update",
    "entityId": "609191588",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x70ae4693e621490c7db3a97477d7237dbac2cba03a10c44f6746b7b71dbaa799",
    "signature": "0x4cef5f5c6b3792c34a9ff64f77edc0393db35631c77733682b07166c5842229e54025153cf90eee52254dce63f4698d4c786d1f102d978bc5b2d039a9ecf646a1b",
    "signer": "0x95916e48E3DC339187EE748a8ef54c4a84287200",
    "userId": "609191588"
  }
}