{
  "manageEntity": {
    "action": "Update",
    "entityId": "825299835",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6fa0c973ae9cdacc8e2558ae7cac954e66214b4df8a3a4b727e569eca50afca0",
    "signature": "0xbdbdc8651493e1ac8d3cb8a288367516f97f26bd7c8af1eb5831caae32d492a126b30252209cdd721d0d37b6f405a2d928794011eb1357cdd72b7ed77edb03da1b",
    "signer": "0xa4c6DDDd3541f62a2F4226b809Dc2c4B29683F19",
    "userId": "825299835"
  }
}