{
  "manageEntity": {
    "action": "Update",
    "entityId": "194963084",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc00b39e2e33c3f67d5f972564c93f0a25775b309509c8e4f71a83cffaf9a1295",
    "signature": "0x8dfca33004bba16b54c132a30c5dab79a4f198ff1dcdf0040455ac8ed23a6cf6201ee4b0408e3aeec9856bc37d919b2566e7ece33d30771ede5d2cc453f693121c",
    "signer": "0x52C54744FeC93B156A460Db7FccF10e22b6FEdf0",
    "userId": "194963084"
  }
}