{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe35862fc34e3ece804401c213673ea039d24ed71d284c5dfd5d5b5c3a9946f8d",
    "signature": "0x08e462b720e1b9d76e18e3d3f4489455ff08c8fca92f82b07e122d76ca12a9fa54bdb7a983f196f2b9386d04ef967afc565fece0122ddb978fe74fe2380be7e11c",
    "signer": "0xD2797ebA55d8b0aaEC8Bd31De7fAcAB9C1Ea2a88",
    "userId": "211356008"
  }
}