{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9507",
    "entityType": "User",
    "nonce": "0xa3b02e9cd3f0d1202bf8c42188b37992aa553239620e4ee767c793ba7eb1afa5",
    "signature": "0x0b76d40ca69153da764e04a45de7dec5f71d2a0eea918354c10de0483c9f0727100adf66de23abe89a8a869cd432ae1a81abd3fb5cd96989ba49bd507023ca1b1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}