{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x675e8fa1cb74147ead443b1961cab5a3da474475db56fdc75a93b2a3fdc2772e",
    "signature": "0xc92466a97aaa431e69c299252461075fb0443c915f7224cb09dde95b74b9ef6104821c0ff99d80eeba1f9eaab8b841781b290124e12d8c11fc76e56d29771f1a1b",
    "signer": "0xd2d78f9b62b3956830b58248CcD3C59911Dd6E58",
    "userId": "846847743"
  }
}