{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85cf006dceb432cb755e3c86f98ab6e2b717366eb39df9f6aa2387d0d8bdf15c",
    "signature": "0x6001921e4ec3ad66c750abf0c5455a003c4d3f2c2857a260203217f430b3dd35579fa7342809fb8db744946b5836394d352fa6ec5ada381c09ac73d084a712e31b",
    "signer": "0xBD46d315142217685c7fE4aC6359DFfe663E7a4D",
    "userId": "409129"
  }
}