{
  "manageEntity": {
    "action": "Update",
    "entityId": "464427506",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragvmpelecrwrhpz2ijgmvin5qaptcaj4p3w6m64y5e7nfwdv4hoxq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":282234598},{\"type\":\"playlist\",\"playlist_id\":125677283}]}}}",
    "nonce": "0x7610f71098cdaf79ee919339d3046afbec65c54bbd5a50f4260001b3f4f9161c",
    "signature": "0x32748571ce9db62b4662e0a4fbb441b83c6ccfda70298aef6f5ce95458d17fa472e1e6f77adbbf3af720d97d9d84a58b9a0040e6fce596b3cb0b57379e51fc861b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}