{
  "manageEntity": {
    "action": "Update",
    "entityId": "994795871",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc34cdeb6d3f3d67cd2111ae787df9f0f77c3e379c2b0ed3716951f16b233a8f1",
    "signature": "0x6232d94a1e390d624fe7c5bc6fa8bf5c8214aedfe84482b9898d8024b4fe228e632dbf28879b886792f8f39249f533aa25a9ff781206508ab59b5b62b2608c191c",
    "signer": "0x4c1DFcD6d9b7FEa332f340d9D6F32bfb8b236548",
    "userId": "994795871"
  }
}