{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x401316f72335b092b9c2b45b3c02f096d5f783fe8fc43ae583dc6d3d1b954f88",
    "signature": "0x0780e51ca67b1c488564faac747636066db7008398774e0d24c7ec056190c1160b773af70648d5eb941f281481f1c0dab49c8db4f8dafc4c0eba0d62143e229d1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}