{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "324845966",
    "entityType": "User",
    "nonce": "0x0d785920b2413a4ca8c208ae93f0fd923f70041dc518c9f4c003acac6a50e99f",
    "signature": "0x08db45b6b15c1e6fb268fab7a65be4d5e53d94c20b6e0f816096b4265bb35e8d1ad45e3f6fa856acfff88f79a46cda38a12c124ddbe77962326d2f223b2ffd961b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}