{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa3feb488d0c6a9944a09d217a2bca38a703c7a6ccead7241a54ebea53be60006",
    "signature": "0x970dadf1b7a71e02c5ac94ecaf88d9b217f78a91df6ad8915b9af18d9735ee86086c975b8bbc30f78b9487f9d6a9ab695ec902c156f6ecfc74e63a91f1da65b21b",
    "signer": "0x02983e961DC3432C2378361f2AF43F27CC947619",
    "userId": "678485749"
  }
}