{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "911290367",
    "entityType": "User",
    "nonce": "0x2bbaad44093a94166f312e1aef887ef44f2e75fb26098e2b49699207391c7115",
    "signature": "0x6f087eb5e1672216af905a071829c7bbe6cb38731e8398c8a0561a6b5398fb812830fa4c8e1c81be1e96323728944ef613dff9f912a592eaed03625c835e5dc51c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}