{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0xbbd320649efcfc15c1748b57056b97f1c71741f3398fcf60680b9c84f77b756b",
    "signature": "0xc7e91486123f7b9ee313ffa2662d643c68fbffe69109cee46fe3edbcfaf4e9674be7fb9dd314efafcf1ef788be6d615e20eed92609250b1419b24b3e9611e8431b",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}