{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08bb7594476d97e156d1dded52689ea251e6a9e7f4d274928a8f4419599a24fb",
    "signature": "0x44a1e302ff95e4be616999ed9ef892dc5e1a0a411d51569ceef19c1c79a83a6e28b48917cbf9702a9bf571adbf02f61bf90b6c9e9df823710b406d8da12f4dd91c",
    "signer": "0x9dc384F3A658d5014BB7edeb7439D726D7901fd8",
    "userId": "246125521"
  }
}