{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56534466",
    "entityType": "User",
    "nonce": "0xf74834fc7aa537cfcc781e3c7e3aa8310ffc3e0f47ec1c3e219bc81ca080d0d3",
    "signature": "0x5d47f3a4ea184dff676309f6a8ee0f105cb81f9c59d0f9ec1fd4948348e6695e4a30f0d9e02416d94f02b9319a8b61a64205b3bd11c4de72ef55144ade3a8c3a1b",
    "signer": "0xF51BBf2D093bbC94555bc2299Ae53Ce8F7963374",
    "userId": "38277"
  }
}