{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9eb7f05275af117b4e6b76fb667eb5f8da273ea255f2cd0d80a9dabe29597444",
    "signature": "0xf1735ab58d07a3f1da3c26a6f561d98ee60f899c5c377cdcbd3f12be452e29220f3ef020fc3154d9878cf0b4b12fa2851483a7068a03805a378a50288de058d71c",
    "signer": "0x1BC7c7b3915C240F7C6acf2a48c207Eba46D5De0",
    "userId": "751343381"
  }
}