{
  "manageEntity": {
    "action": "Update",
    "entityId": "589001907",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf1ef425982d7a317e01e414062ec99087192858e4d7516169fa19dc465f7b882",
    "signature": "0x6a17ff1c49804b9956d9b624042a3052257786311f0dc2420dc4e5b1a9ba9aff6aa9abbc27a88cf26523de78e76abbb3a2f2554733e6c63e1c77855e1852748e1c",
    "signer": "0x7bE37db95995dA6f7A04761610FfCFdD804a5cC6",
    "userId": "589001907"
  }
}