{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x3d2ac1c6fba4a50a387bfa64fdbaae87d3ce64d761c996b3604ffee7ae365ae6",
    "signature": "0x67ab5da3e787509649112e2667358e769171c8b7136ec1aac1baa25e869abf303b314acceab872976a45f45ff8ab2d6af79cf780c5e0a8b4472595cce3f74f8d1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}