{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0xe3a6254befb6adf95a26f54cfc7889ead73e92f1aae2031cf5f3aa24fc3b262c",
    "signature": "0x1e32d945e6c2a48daa8c43ac2587ea9e62326910a10b780afba5948922a60f784fbdcb3e58b93eb73661fcbdae3c837427e087e30967d8a305d645ddab3095a41c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}