{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037384",
    "entityType": "User",
    "nonce": "0x540fb4c7987338627c86e9e83a4b05bedfd6939f5cb6e9421b0e575e5ff32c72",
    "signature": "0x8eae3c8530e99d99f1f3cd684d1199af18c9e0d87c82d5b27c6759eb778892c533fa91680fd7cbdaf0888155c316f8694fe1e66d5e359c3579b4763e310892051b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}