{
  "manageEntity": {
    "action": "Update",
    "entityId": "144906061",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xac9d456fd0d0cc121ea53e382c1fe977d146786e9320a996b00c211d1957bb5a",
    "signature": "0x22859c13fb0de774fc9532478e05d81e8875fc60b82f224ba3bc8702ac0f31a17b632b943cfe44d97fdb7ad563e03d37f4096fef31d02f659130d54a0c29a97a1c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}