{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x78eda8626b7353e6d4d4b7dacc8398d09c26cea4b2e323b468e1997cf0ce8682",
    "signature": "0x36a3cc9346294febc86d20700d0acd2337bc9a57a89e38618dd0c81cf710e66e038022ccf0dc1456f83f07afdbc0a142bbb219b7e8bd4f4fc67b6b3c077479351b",
    "signer": "0x17141572B0250E4291cd034d4C034793AdD4876c",
    "userId": "777872195"
  }
}