{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994758391",
    "entityType": "User",
    "nonce": "0xb1cb0e87c1434667ba155c06ca8c4c6d10f8a9255fd1103dd01d85ec713134ed",
    "signature": "0x0a7549481911648ba5f65f60f7206e4f22525460012dd11b023cfbafbe2fc43d74587e31ae26f0ac9317bc081c27b81d37f6a34493e72649ad654324163e5d401c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}