{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714581477",
    "entityType": "User",
    "nonce": "0x8db5f676c6c99116f5c8d9dcac5daf92d93ca5ed597d48e231789f03a3512522",
    "signature": "0x2c974164344bebf657e9d5abcf5c87f7d6c4ba53dc58282cc21d785b5551e7fc6e40fe3c803a595bccbcc81213c4ce5708366f7e9787d1b0f4fca675c46e09291b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}