{
  "manageEntity": {
    "action": "Update",
    "entityId": "291254589",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0a742c25b23590182fdf503b398bf11ecc9992cc723f34ddfa6d1eabe612000c",
    "signature": "0xc5e7d62692605e11a6cf2997195dcfa15820dfaee746f2304b45ed8426c1b15730c136a5acf9752d03dd8ce57f7d685b40348ef00d3b3780522568e11562559e1c",
    "signer": "0x6cF07356bD41B7b183b408E0427D2EDe2Cb22373",
    "userId": "291254589"
  }
}