{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280440301",
    "entityType": "User",
    "nonce": "0xe5d0eb036028868b8f86d6a0a3d051c052411930c933d6011863908d3b25afc6",
    "signature": "0x95b3d26a9ed5f9c06441136f8e57690c3c6064773acb2cc58024011ce11cb5b31cd6b29a9bc56896cab455097b333496aa65be379ee72539159f5755e73242661b",
    "signer": "0xa26d3Cc8D0F05E79596837bc13c4Cebc9Ac08933",
    "userId": "421871922"
  }
}