{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954169504",
    "entityType": "User",
    "nonce": "0xe45cc12939e2e40f82369f959a230bec371a016c7fdef98b6b578f2d3cd377e7",
    "signature": "0x3c4284177f450d9fbf12500e5ab47409000f80ddb1f5418ba94840edcc98c50b71d62a3cbc4d552c6679bf37ffe3cb3cc48ce9717d623de841e603ce32f2bc4d1c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}