{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "411390451",
    "entityType": "User",
    "nonce": "0x21df907ba9df77fcb3b8dc7d10ae784d811db194a062b96c255c31a248167368",
    "signature": "0x7dfa86581f483488a80cd7a54369f58148cfe222d5544eba80bdf837c660df6c1c934fe414918f4add5ded5785dc033b35da45ab99d59e9ee4b738a9013359f01c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}