{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x6e5db61b9ca16b086636444135632493026918b7efafa725e5b7fbf7ae891b50",
    "signature": "0x4a92067ff60c385a946353a319daba979de53c27e6eb8fa132c628cddd27ee9418bf4d592635435e1bd19ab45d6ac944cf83badbca966937a9b0b372ce04b4d41c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}