{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0x7263cbc60a6ed3e76ecd8319391af2863e0929c6ba6f030fbf512948e3abb799",
    "signature": "0xf6d1fb884100ee8fbe1f5f5e12f24c22862818520294d390e3f1dec4e543032a33c9fef19ef43c16f1d16ba0456157dc6c9f93af0c9a75890f1e9bea59053c641b",
    "signer": "0x11cd379D12F9a2c7BAaE2f74F1914A8c50faF2c3",
    "userId": "387949683"
  }
}