{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175853",
    "entityType": "User",
    "nonce": "0xa50932d7c0b048af4a3f1417ded8d8e7571c0a81baedbe36c1d0bbd6a373afd1",
    "signature": "0xfa8b6721e24d9e9b50558998ac27e2a2c4c95daba59575816da940e97b9d26962172977dbfbe61897d90d0606d15a1714fc80a95a443a3687e19f8d79961c5681b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}