{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7e7f263449dea58a0d2b4a75f84a0dd16cf9a6d3511080829ef066dd234a267d",
    "signature": "0xb60fa313101c47437ccc3851d507207430579a9f6ff49fe9e62505ed80e77e9f218d2f73e41fc39936eef7ae60584c5baa27f147334a0f4492d5a5dd32c0a9fd1c",
    "signer": "0xDfcccf135Ec91aE92829DEad4B0389692068Fc03",
    "userId": "429971908"
  }
}