{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x1d23e04fee81944ae74e3df82a7688cce88c61861c828eb426c067d551eef7fb",
    "signature": "0xd5766344532be754e2d54b6787ca1276a1e5d26612d01a9b3044c3a7c9a6ddb95fb1fae5eeda7ff63efdeaf61a1d45e2fe892d3597da4b86874a2717e4c624d21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}