{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "551451362",
    "entityType": "User",
    "nonce": "0x5f4c5ec56242535b118482bf4c6dc23d70ea3a1b35c861cdec627bc16ec0dd6f",
    "signature": "0x9a26527e41ef300043fc7f38baa810bbad0e092da0469336a0d6bf25517abccc11b172f5a3c4447f3a5ea672bf54b54436334a838d2d92aea67c0da94530c5a11b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}