{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd641b5da7c24ffa6095dbe9ce39c7881adc240e12b465c353b036c88a21ff392",
    "signature": "0xe4a76449200fe57cebe7cefb8435051ccefba3c7e02884139de1a0b66f71f06858de3c55104c154082d80d5f73c582e75ac61ff801319af0d245a4b31919ab3c1b",
    "signer": "0x29834AE24bB0BA7B887395121646468A2f73f038",
    "userId": "570016156"
  }
}