{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67508",
    "entityType": "User",
    "nonce": "0x3b8d15879d33eda880c0342178b27946f870329a3b91ca4691c2187bd13fb84e",
    "signature": "0xb6535a2534b914822cd5e57e8393da73731a8a2e9604bc69d24bf0d28e500bad5949a18aa37c6ccb2c62695b45cd43a28d11261048afdd3b31a0cd1bf9d276111b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}