{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0x00355cfc9fe662fef6e25e74dfe1229fe7be87abe45b6e621d317765f3dbe292",
    "signature": "0x32252b6004386790ae4fab15f57c06f29bac443ed7e1e744dd7a63f2c8137c93515c44c78c7a6dde74e42dfc86f881a5ef5cbd945e3aadb21a8e72fbc85576f51c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}