{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "655776",
    "entityType": "User",
    "nonce": "0xb6153c374eb375ef2f880fbd177a5f4dbc1d218c6ecf60d336ad1c9f97707a3f",
    "signature": "0x3925e51ddbccc495205b7dfe36e8ec8b11e5c233bafb3895fe5c0e9bddfd9485037c15da43c43bc24856a7a707aabb391084e3ea55250c9e9ee7c49c4deb9a621c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}