{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea69d8d76b0ecf7cb45fd067b85de2746700b5af66702e597dcefb6b8d1681c1",
    "signature": "0x4394fb3afe1d71419999c59e840a391b4fe505fe6d403e1805ee75dfd1aa3cb44768757c04a4efe8360f7d67cdb271e4dea2e00add4585806a860c52da78133c1b",
    "signer": "0xce1fB8A1818a6b21B6d7a5d092bF71093065AAcA",
    "userId": "496820532"
  }
}