{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6199ccbe84983df3ccdc02407bdc8c05cdb3ac1168ab369211c758d5fe76a909",
    "signature": "0x23e9ca5d2ab0b656c9891fdd1f44a935f7e514514b0c286947fc20f587d7b50c6c64b04410aa808b1e617575db7a240f01d590490edb48971ebfd69521cb04ad1c",
    "signer": "0x47876366ACBb20DaAC408C422AE6f75Af3969470",
    "userId": "279084195"
  }
}