{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x10976876120aee6254a12ad7b2b77bc93810dbedfdec4df35fc6f44f7d7e2841",
    "signature": "0x76ec28a303a18b14c0ba094800ae31c993abce7af30ffe8bebdbaf8c2dc544210184eec6e03fb1ff95e02016d6ae5ccf56288502ddce0b0501e8ae4fe38c69b01b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}