{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1036471",
    "entityType": "User",
    "nonce": "0xd3be18a1a0e47fe952a0211630fdb087bc445c92516762225a00b0015b19d744",
    "signature": "0x66c06b70e299c6cceba13a287cc74e34aaa9137c4abae96a16974a4c74e27fc304b57d58a10f0e5bbbd6549c2faba3cb57396b90ecbb61cee3f80a1b93035e541b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}