{
  "manageEntity": {
    "action": "Update",
    "entityId": "515307498",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbb7f4ee097e86cef84e3faa2b79c15886df4532a1576122355302145f8f61bfe",
    "signature": "0xaa17b9dd0644f9d2c8d4e5c0ec9681b9556a5095f1670212b9c35bea09799f1508204eff29374d5ec064e0344ddf63fc3820f02a0384d4f494c3d7ca321edaa81b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}