{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x45f6f50422e94a98afce8eb31b07a56419eb119163be9edc0ce999b015021dcc",
    "signature": "0x3c08e7b5655cfb29dcb3609effb524df18ddd4968acd459e8c2a0fcf52911b4d6aec59a99d2c548347df16ce2278b1fcc5c0ba42fb21f2160acd28ab2adfb3071c",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}