{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1889",
    "entityType": "User",
    "nonce": "0x7c0c8738913df8e3388d6bd4a3a59044105d8f548bf164d0ab26f7c5dd5b4cf0",
    "signature": "0x37fcfdd4944ed9127ab97f1df01b7252ebe1dc5e228999f42b059ed3cbd4ca644ea34d4453bebdd967902cd240d2407c19961e1338486a2b03845177426ca2451b",
    "signer": "0x867107DEcFB40F44c48D3a379C9aD33d78003062",
    "userId": "81310677"
  }
}