{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2837",
    "entityType": "User",
    "nonce": "0xa7426419fbf4c79568954988cd668c0eb92350c178dbeebf26e72c5a37961afd",
    "signature": "0x1f491544a141443665fd69d8498bd30b3a142803a36e3acadb89df21e9014fd6166aec8ae19dca0428c95a7a4f76ebb5e5b43a49791943060f1ba88adc948d981b",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}