{
  "manageEntity": {
    "action": "Update",
    "entityId": "156660389",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracncxbksnqrktc73ukx4qpasswyzuymtl6uqctu54bzzioasggfiq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":220536330}]}}}",
    "nonce": "0x8321ee445442fc1679a89024249f1bad30110792796e3426a60e14eb04bc079c",
    "signature": "0x6a39a91fbcf20ec55e74d97366457f983d90983c09ef114fe1ceffea24c9864c59829fca3657e80efbba9d20c1e05896453fa89da14a1aff5fad681bd778c4cc1b",
    "signer": "0xA057bBa0eb386F1B2D4740a96749971CDF62f66B",
    "userId": "156660389"
  }
}