{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28851",
    "entityType": "User",
    "nonce": "0x6331cff65053a26381207e928dcfa52c6f3002be0819c2a5fe58393591f82966",
    "signature": "0xf75e95f1e922c0cebefcebdf0fbd898b7abbdc311272eb0776edaa6e4b47d70c696f0306275fcf591472d222303ae47e58c34bfb944e6a42c109b679ee9990af1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}