{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7b29ff500e3e0495f84e512716b08d77d7a8c7e3bd1957017274a034d8e9beae",
    "signature": "0xe787f970d95c01fc50b27ff8c6a6389d7f57333e134505bbbf5c4e56d134c8ad23c78d894f5379e3993a77fe652bf843d8b11cdcb5a5ca87683495228918b2871b",
    "signer": "0x11ed152936b1246b768C3AA5B53ed9aD46476bd9",
    "userId": "684501630"
  }
}