{
  "manageEntity": {
    "action": "Update",
    "entityId": "418312750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x130b884813408e32933d4e0f6e92faf8513a83a01eaeba9081c93124cce61909",
    "signature": "0x428742972a9a57652213ad5817dff2e7348083f2dec920fdb9fa2bacbf2653291f42a4cac8c0c4c0b054e04c225fae6658178bb542b51cf334a1c351e5c466471c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}