{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x83fa7339496270c4c4f4b61a298404b2f9e4710d0f434c7774c4ac8113640068",
    "signature": "0xacd662a9f66153a3348ef08365e83b954c2d39325d833c8f9747289b253191831fb0369988d38d1ab799222ad9486c7cc7fbfe6b6dbf2b7e4627be34da3595ce1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}