{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416336984",
    "entityType": "User",
    "nonce": "0x2440c31b18e2219b44c0571bb7245a1eadfcd5d475b491f6a4b6e12554e00d21",
    "signature": "0xa3fb238013456ede3d94c4be65c87a83c8b3d7f3ae5a02f93533b730984522db671a37a4f2d4979eb322761ee3b521cd8b82a0a3c43d261d5c463d1ed7fb158b1c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}