{
  "manageEntity": {
    "action": "Update",
    "entityId": "318322201",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf8bcb39be07443d66e656f73bce7dbeca0c65067337e7a904fbce0f58cf50b4e",
    "signature": "0xcf0f97cf44217cb72385803371c57a74bd528cee1ef90d3fc5ecf275133d0a292c3025b9da9a2e86e9040254efb09bd641431ed481602d9eab90fbddaf764fb91b",
    "signer": "0xe27012eAA9D36ad85dB88Fd0D42D0b5db3Ab31A2",
    "userId": "318322201"
  }
}