{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "545360304",
    "entityType": "User",
    "nonce": "0xd8b3d059342b55e219e8438d05fe8bf5721a73eeef82110b17dbd1016f84561d",
    "signature": "0x88970bde9b0135780df014e65f74a4708f140bcdd532a7c11d83d276d8d9ac7c139f79d7825fa6e1eaf2f4353b571a63ad32aa8438981a2794aa0342563012ac1b",
    "signer": "0x07024945569e5721E4d506B01fB850443CF99F65",
    "userId": "871280797"
  }
}