{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228972129",
    "entityType": "User",
    "nonce": "0x6d5687db22171e7c906886114942f6d0ed24d7d1fd438d76f3ea9aecb0b9e7db",
    "signature": "0x14199f73604bef3964f3b2cc5b5cb42a27665034921b167608b04c744801da5c0d83183d7878572fdf478ae42bcb82a573fc77c176f20e905dd03017f8a3616c1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}