{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357010",
    "entityType": "User",
    "nonce": "0x85bcad092f308ac0938b328f0786a66d7a4f6cc3e473d271f3662d152e49a5b3",
    "signature": "0xec2761162f1ed9e2bd5738773f1b9f61839b08c1d45bd297d48dd8a2d13fb3f927966d59a01f98b17ddb158d99ccd7dbb25295f0b93caf77b17b417d105cfed61b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}