{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4400c91855f267fe2430ca6647a55a5d15bb94a28c8adf07e7240cd86d896fbb",
    "signature": "0xd95bf428b7b7fd179e39a839bf92b3b51584fdc171c905f8fffbb62a0e28b7326ba52ea64f32c3cf93610e1dfccde76678ffa3aa7726154808498b76dafd23251b",
    "signer": "0x0E71C12c426F5C9206F778713f48B60477CA943b",
    "userId": "29088079"
  }
}