{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0x0d4194eaa57d7f68eca205caa6d17373c79be0574b339a07d2c85c39632818a0",
    "signature": "0x3cd04489c99b9e7097f3fac66dc48d08b12e24b812801d0b2a9b400f808522e748b63735f9b2f5241da0dc2b72143dc3c156e08dfb458a271588de651d555abe1c",
    "signer": "0xe73dEC83fb1FFbb74b846Ebe43FD299DFb3371E1",
    "userId": "225142146"
  }
}