{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xd947f9bd09c84ef292bc018be351ccdd1d0fc9ddf25f14ddce2c70a98c48d85f",
    "signature": "0xdd3052c1143eff026bf0249998a7ac5af2dbc614522c4f50c609677b1e5302ee2f559d932d84c1182ec41a8d9d541cf2f9da30ddcbae427886a3dff7ceb987c01b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}