{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341",
    "entityType": "User",
    "nonce": "0xb8f7436a6a019c3acd09c8a04ae27a4f2f222cb25c061a0e04b426cc77e041e3",
    "signature": "0x63fb3fff92273a119096ea2d369af252667462ca29c86bcd78df2f0bdcd33f6e7d19865f562033247a85b35ed976fdcbe4b1da38296070672a14eafcbe8826f91b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}