{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "662401989",
    "entityType": "User",
    "nonce": "0x9c117f03401380fcff538faba5b100beac3e728cb98ac8e6f9ac0c45b6a0f039",
    "signature": "0xd8298ff4b44d256129dc88448a1469e5a3dcbecb34729f83fdd6b6c388a95e016488159ca137cb26c3edaf38275bb2bc6616ee31b5008400391d699f26275cc51c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}