{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967215477",
    "entityType": "User",
    "nonce": "0xe07a87c4f368b281f0a42f40fe129b9f7d357d9137f0b9e21fe86700d39458a8",
    "signature": "0x7cb16f9e62c37a6a54ef1e19eb91fa0ca466798adaac831c224ddb18514aa9993f8a1e80132423707b7963b39d07c17086df2855ab288e50df605609b9a38d3d1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}