{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcde93de70fe405e1bee0772841c09fb323b82681eae05f1ae013279153137489",
    "signature": "0xc4338e84f831148b10d751ec824e02e34ea597438acbba825f6b565b443c51792f46ce4bbbccf987172840538322e997b751e8281a4c79f8c87768ed251df5aa1b",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}