{
  "manageEntity": {
    "action": "Update",
    "entityId": "697765896",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3de95d8f20aa52e3244774beb9bc5aec2c9f4dc4e1df0d857ea85621053b1dde",
    "signature": "0xf4af2c54ded923d43fe6c085f7e4910e90bf3823c9af7d9fc472be103d641d551756106384d8db54a26ba24336784199a528bf4164a4cab232b78e29d09a35f91c",
    "signer": "0xdd9866f5231155D8450f557CF6216590fAeE2900",
    "userId": "697765896"
  }
}