{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xb04775a982596b83cc9d125f978affd4507f784373a01b2f713c62925d79f9b4",
    "signature": "0x4024e6b28cebb61d0d0905c77d98180e8fb98ac1d1fad98a7d1ef9af2a28b6a02f00e98a986d2d82363c277ab4e733993b473b2753ca0c3f82a2e4b49fab49611c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}