{
  "manageEntity": {
    "action": "Update",
    "entityId": "967763751",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8cbb3ce1a861e3ec4f63b4a9249ab08707c4b0ba6ebd003eb4c2165c6b191b8b",
    "signature": "0x48ee861413cbcf56f18a0dcee5b69fc8df3f16c30667c43818668829ff751a6a6802049f0cf9d9b5c2d66e568fe7436a3995238968e5bdd9c7f8d44c685c83c31c",
    "signer": "0x122c01b892B30716dB16F0430B2F694593cc171D",
    "userId": "967763751"
  }
}