{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0x253eb771e9b63733c0b1cf4f0b2d6ca0d916293a28bb04a3cc66635f4f9ef1e4",
    "signature": "0x3b40f43e395c29f4494e8a30ccc1157d26a734283c324695d7099d7477bcfc261182e94a720b48586418c5c15380a1a49a0103e4874751d0f6e036064528ebc21b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}