{
  "manageEntity": {
    "action": "Update",
    "entityId": "216278113",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb890af444dd031ca5e235c65de33229fd9fa948a12ba37c5571fc1e7ea5df611",
    "signature": "0x600cb6e3af0f0bc7fa1615031614dc9c38996a2c809ade8daee5add76da8f64e4f5191fda5171ae7e343d252863f4af8c3c762c929bb94aed0995ebfcefb4ae71b",
    "signer": "0x2327E5BD5371c76aCDbfC4BC4f52DB8ea8A57f18",
    "userId": "216278113"
  }
}