{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51656",
    "entityType": "User",
    "nonce": "0xd203490462470edfd317d889fc41bbb1a9222c8f035f9113e3c5d84f41d03934",
    "signature": "0x7f68c8efcf0ca26c02187b8fc732e7ff337c64a4b620f583e7b41e8456a1caed61fdc4cec6b7e0ada3736a27ffa25d3c66b2269dee5095212ba25f2cc4befaa91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}