{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154377962",
    "entityType": "User",
    "nonce": "0x17f42df15202a28b0fb1fc72682d6bf6417a0c74b2722c25549403fc8f7b5414",
    "signature": "0xd1501fcf289f32ebf4eeb3a134ae01f6a3500742b9cb607562cd2328271fd4ff301e7900a6d1a7ad2bd4587e9c3456179c63299fbfb3b58ef445c51c5382cd3d1c",
    "signer": "0x6d6397f74d01E51Fc0C654f5703B972e7CF26876",
    "userId": "237542932"
  }
}