{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x5c6ff2cc2290b94d0629da230c27a1b92db3055f2e330687a5c7cc4f4e471dd1",
    "signature": "0x10f7d284b4671f3301320804c1a317dc741346b8655ab8188aba2e812f66f07a5f6d4d576d01d47c2b773761dba66f4f60f7e0c6a62a49fcf0d724a3bf6e819e1c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}