{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494113495",
    "entityType": "User",
    "nonce": "0xfa5323171344893e1ef826ddfe418392fef184bc508cb30c492cd53e2f8b0376",
    "signature": "0x3a0bd60f094da65966c358e862d982acdf3447227c1c9bd91c777f6f63b9510a418f0ea3d84ce8a6caf5c93131bf670a8d19239fe93594db1f537faf2e8763f21c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}