{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x015f8b6efec6af61bec4bf511052a3992958429f7df04808bd52d43cbbeb9a92",
    "signature": "0x646c45c425e46a5d7db18e39feab480606ffe0f20b85fa6491f8321e24574d4d4a77017a7fe7594fa94b0d833c038e1b1d1c2468ae4546993cdc411b79408a8c1b",
    "signer": "0xFe33B85231964EBcdDA093f889d1DF88Bf6FeB71",
    "userId": "252216266"
  }
}