{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313074",
    "entityType": "User",
    "nonce": "0xa3a06ab60065072ad293ea7498a6e951e14bbc0fd6cf7f08615406064d13090f",
    "signature": "0x40aee30f347b445faa1738e75b9916d8ea1bcf7646b19f2731aa583dbeef5cf9764b343c8a0ef29814a12417b31da96a4d5c2a1387e598375c385cc9824faa4b1c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}