{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67948",
    "entityType": "User",
    "nonce": "0xd883256fc5a14cb0dea7f0ba11bf6b0b338fc587cacb002cedf7da88909caa41",
    "signature": "0x2bc58608853c4d8ee364e141dd51fe936380b23fc25fd7c14703d29a4c3dc4b347aa24c416f3a6e0c3674a58ea8fb61c847282d81e44c1bb69b6a3e60efe09a11b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}