{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfe2c2cff9507d9d409161e70f9161afcc0d5a86e08ed4dd3a5869ac9b48b4cba",
    "signature": "0xb9974d199c80f5a067353e5019d4a05dd0feec7961da869cfd1cb45cce61cbe67f237cd1597f35e1eaec5947197a5b8b58b1dc40c43ec168097a6bbc051b39b51c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}