{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196403",
    "entityType": "User",
    "nonce": "0x23b4be56f8c066391f43836498134668f4410db66d2bf6bd170740f64819025f",
    "signature": "0xa763c12c37c98ca6c9dfc8679f97d8573e1d9a1c839db27f806aa8f8e31aec743d8f2790929cb7f9f2f3e88ffe7020012ca704a27ea6839bd712e83f337161cc1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}