{
  "manageEntity": {
    "action": "Update",
    "entityId": "676486582",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa6e66f175311a12ce08a4013cab2b8c4936bda5c5ccfd052ad38a2c5d5933033",
    "signature": "0x5bb921e42f19805c25a007a5ceb2e88649e8f52dde22ca53a9768f72b3960e003081d5249e4b5945af98a16742fc15719173a54050e1c581ec45ab21661d0af51c",
    "signer": "0xfCB376B1FEe05c3cc58Ac51af6b5f7bd4a0dcb57",
    "userId": "676486582"
  }
}