{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "619073",
    "entityType": "User",
    "nonce": "0x47c06cb3fbb6fccc73365b7f923302edcbd2042cd9786275aaf5bcccb95c423a",
    "signature": "0x5616e3e93b67317be14fa4ba145238081fa0b175f8503407bfcc214595aa3e30661ca24cd73d8d5cda614545e1b694bb3b42127162e9b850774ffb41b57a99b01c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}