{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1856608",
    "entityType": "User",
    "nonce": "0x91cd1b3d1f33b1990d042d3edb84074f5b1a7aebcf1237da348b2f5863fad19d",
    "signature": "0x7a3946560a3f9c4a8f119b8fc068136ca1c8232427a11c282407addf0af99e5370c72b2eea4abbe131e39331e89a0d7b772232a450e30a91129f661a83c8b59c1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}