{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341366",
    "entityType": "User",
    "nonce": "0xc8727e3d6430809aa0b2e3abcb4639c07ff7a20279b5beb81b34d332081cee66",
    "signature": "0x68ced097910a07222e25c62897a4c8c66d1f3c7025a3491e834447c11fdaa4de150c81386ff5e628bee1243e0fa0d5ae614a625ef87c53a197f0096a8a2bf60d1c",
    "signer": "0x4731380E74b3A5C59902e5AcFcAd1fF73f7aaf09",
    "userId": "367370924"
  }
}