{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256479919",
    "entityType": "User",
    "nonce": "0x61ad3d08314946b2726c268a8db2d14571f9dd4c9b20eaaaa288e4907160771a",
    "signature": "0xe31dbdaa7a44e3fbde052dac05ff34423f6b0b600e4f39f493a5b351af0410885ca2cf63f904c8deb233117517ea6663e505dd6fe62c0830bdaae74a216b7f231b",
    "signer": "0x3256829bD2C36780Db69b5c18671A1DA06B8d505",
    "userId": "468369673"
  }
}