{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x37d986073109f36e1a267f06d632194b106f8480a720dd3d3024443b6540f3a6",
    "signature": "0xf6743f209fb2c4bcd7b7c9848e076852892c15a82e8f152d7eedffba3249dd19305dc7deeea88a24ff350f260c56f6ef07bce4a248e7ae640b3de96e2b92595b1b",
    "signer": "0x155f105eE610aa5605bf8F9a405ab2716147dDd5",
    "userId": "18330982"
  }
}