{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xfd6cfd1f84483fde422b7830585a923d8d7daca698f9c6a3b28ebbed440c02ce",
    "signature": "0x920329f48d36fe40751d30e27501b9cb123cc0b40df7a1425f8cb2efa52735e873b810984e92528c59e9ed032634912234ac1cd59cf69393d431c1d5f308cafc1c",
    "signer": "0xd832cDDE8Da519b6aD56d440c66722AC65cc18C8",
    "userId": "755155896"
  }
}