{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c8f93e4926b15c42990369ed474dcc4dc81683242a4c372b7fce957bcda1277",
    "signature": "0xfd4e1e441567cc997e583dcc619170659ad6b0d6ce3db4096564f6e4435aa1531c3990306fa21cf9c26f9bd97c6bac35b84f3c3e64696249b1c6c65f413ee13a1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}