{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0x6d58bff13541d457b490e31858fcb08ad53ed1d406f0799600e2006cfccc2a2d",
    "signature": "0xadca46c8d34020411145b0bf28c2f6d2edaf58c02ffb0a516ca1042e03bf452c0e8e51341b9f01789ed46a34cfe544b9658c96e75a1cca62339b018fc4e5a9721b",
    "signer": "0x29aF37341ECc995FDD7C5fd1757A5a695244AADC",
    "userId": "113302290"
  }
}