{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea6cd4b55e01e49c3424d79d3f2b416a184420bfd99b8e0dd9c43e3214153f72",
    "signature": "0x5c7f5b87cc7be946880c57fb2d32edb04f2632307204c4ea9c26e5c97f6b013e29a29e3cbd0b7aeb60e7f26544f1255921922a97ac588f4ce974e7950ecb2cc31c",
    "signer": "0x019Cda58E0Cb5E8Ca28E37e44dB043Fc079bBC4a",
    "userId": "687689059"
  }
}