{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322027",
    "entityType": "User",
    "nonce": "0xeaf4cd89eff606e6fce2611baa3c417bd31d688ea4ca43e7601e613822d9a096",
    "signature": "0xe404a4adbd4738beba3d1823bbaba4978cb4f652c70546ff27d62d599792edc163e50baee78f1f2d47ea0876c792067eac9cd1d89e68a32ec345c331785130b31b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}