{
  "manageEntity": {
    "action": "Update",
    "entityId": "871511642",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0e1d946257ad6aa03c036d759ba9b384ff6bcec45ea1c0805b2d6965cc054fdb",
    "signature": "0xf9bf0b022d507f4c7c217e8cb3a93bda138db4e249df2e8044d401d6c0831b3d4db6d9463169073cd85806ac24710733c8970828e72a6227f428fe4bd32078391b",
    "signer": "0x3606D196411cfFBc994b5d1fA493b4FE439A15e5",
    "userId": "871511642"
  }
}