{
  "manageEntity": {
    "action": "Update",
    "entityId": "670505084",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf279e05ba8c8eea63cdb53abab17535db73689501212d744f8933af9fea3a3c6",
    "signature": "0x9774b2421e416c89854539bee3d237ce3578fa29e01751d66d94dbd388e46991306e9ceaf2b4a9c7f79f3acf402069b170d4b05068af622c819e9f07864fbb7b1c",
    "signer": "0xDA51D2CDA2bb99eA537b4989C946A1f7057434a1",
    "userId": "670505084"
  }
}