{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299279",
    "entityType": "User",
    "nonce": "0x09c6fa1c1170c9d91b5157342ce626d4f28c330321d86579c0ee6345f4ff5ca9",
    "signature": "0xb60bb197afa61c14686699cbafa3cc8195c698b33bbbf7ec7ee86c4cb00690da4845a88a40ba7eebd8ffcdd7ee540579999bb325ba34c34f88fafb56e92d73c01c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}