{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81568",
    "entityType": "User",
    "nonce": "0xeb25cd7e96a1a55f9856e29efb9584d86ec70c2330e6f1dea340090910e5c495",
    "signature": "0x036672f67ec143aa6994d645bda1360075d2552e469f2489bd7f8dcb3c51cc503e38251dfd68ed24bf617d66d278b3f0651fb0a1b8dfd00834865be7c79683701c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}