{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304837385",
    "entityType": "User",
    "nonce": "0x3ce6f32e7814ec732f6648d39a71dbc517b8b4d8b40989b5aea11af0c53de69e",
    "signature": "0x4cb744ddf5bf06732e87764482473931d9f9a7dea25143d816a48d9a8d352eaa35a94884a34b04058d82e53eb81b44c18b578d1f0fd13ddc7a49fc22b32206921b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}