{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0xdbba7a9d18a679ea1de02027da6feeccd826a20d6eccd2270c0c9a5a14f6c4c5",
    "signature": "0xc7f3f419983797fc978b1c875054783cb7df37bb3433827a8645a3ba063ec42827d1062468d4c8f51a8cf54d60d5e626e07136b031d28109bd86ccd9e92510001c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}