{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897648338",
    "entityType": "User",
    "nonce": "0xd1c065ae1143f015bf0c646bbe3a19be234b3f78653d7ed894f2efa964da054d",
    "signature": "0x48f88f1dee19a2a420817675f3e6696f2d65981dd0edd2c30d350562486188a84fcec02a2d9d09f7b66fa1bbc03bfb54fa42194322d83d30e9b6e50d4ad083801b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}