{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139",
    "entityType": "User",
    "nonce": "0x4adedabe8eb54b42f117e4ec1e5390b87ede2e5758489d969a9c312172942bd6",
    "signature": "0xe01e8ff4400d9eaeb155dbc6a3eaf8277b62968b313899c725f84174e9c9ef9b70a9886c38604bbd620a2f9951b3fab8861563033538f401af44d11a33fedf291c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}