{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08a257526e4fda2590cdd5651758d55b944a9510545251ec2acc991f8873941b",
    "signature": "0x4fb17a37c34c801838862266a0fcd91fdb5483408d72381ce547d08941c143b623c1f5d78b2ee9ab287a67adc6197a4617d7ed4bad067e1bb491032f35dbb49a1c",
    "signer": "0x44fD2e797a7c77B212c121196F6F966C4BE560aF",
    "userId": "677928687"
  }
}