{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129337",
    "entityType": "User",
    "nonce": "0x4ba9d62deff4ff13659d9994c845c3f112fa67e6a0181363735c32ecaf715ee9",
    "signature": "0x3e326fe9f5c81d8106e165fa5588b7903da77c6baeba9c9f8fad09e253bd8f865571d1ab8d52b79c7901534f025031542239f94fa3ad1754b4f09fb6e1197b7e1c",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}