{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x77c7413221f72d1152d06d5fee24ed4569c430ba57b7db381f8404483d148c46",
    "signature": "0x6b1897fc43f14f8e54e3f734ca3580f3cbd8d25adeb688aded9555b4e38e452079bc46fbf815fc95347df946c8c9f6e97a16be7b6b7a2e1c3bc9b7efca736b9e1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}