{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56024210",
    "entityType": "User",
    "nonce": "0xc29077d289f8662f29332cd06b1ee9207f3743b3bb813c23b2fb0a05afc7afd7",
    "signature": "0x48e8b47c85ccbd9429ead1397a2b1302ac5beda3cee06d241b85d2096598712a2d2c35d0aacdab404aff575698c1134304056d6fd0619561dd6dc5b744138ac91c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}