{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1756927",
    "entityType": "User",
    "nonce": "0xdeb78e099a5b54844effc7640da294302d0c2d5837feae6120d4efc7e6be115e",
    "signature": "0xca26c3e55318adb21110c3dba149fb9da27afdebd3d9df948434d270c1d4751a461e5b8ba6084813b37ade4054df04697d019a95e242e40f4c823183d143e1cc1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}