{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99386886",
    "entityType": "User",
    "nonce": "0xcf96cc30c298564637c657e916d1a8067c1aa5392d8f22f8b9cb5ba0485becaf",
    "signature": "0xda1d78d1e4b5ad79833ead4f907c3e0cf907c2704943053f31b1f3c4c49b66e8667946e3ebcb72f507a84b6cd8f0456599d5fbf02b0c3f599968acc299930e051c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}