{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0xb6eaacc6d8734f9e38e2b20b2da194d61470962be2f976b1e0e2402a01219cb6",
    "signature": "0x6d8ca5a23b2909c4228d9cac88eead19856d2bb239fb8a562c1609cf51c733ba529ee04a3cd4a913869261374eae63d99bf65e8617e68a18e08a4a1f8a728d271c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}