{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2578",
    "entityType": "User",
    "nonce": "0x5478ee717af20b09d586bb67d383c809e3f81c931e92b8687ec86a3c4213913f",
    "signature": "0xcb3e7f835e41652c92f6f575844dbb526078b1af4b245dc54dbe88583a2d6723133a0231de6f8b43bc681d74babc238fdbe8421d98ed7aaa861416c4dfebc9071b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}