{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x52d2bd63ae2e5c8cf46514ca0a8a278c84fcf2c8962a10cd60608d25dfb866fd",
    "signature": "0x29a5e810f9c8e6d67e68ba81ad0ddc9c59a87e54a5a200a0b39de8a9074fc96e564195f476219245790b5627fa16a197a002c751ece575f9df4d8f7e5c94d4cc1b",
    "signer": "0x8Dea73E7469D1fD9afD89b5FDC44718F071B8A93",
    "userId": "144754510"
  }
}