{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc6561bd52685f47780de2e35b88f658cb04b874da9af064e81ceee71721ccc58",
    "signature": "0x308d10cb3c30878170df81de087179a598a00b3ede6dc5729af9f24f1e55ac9938766bf1f749894430ebd78de98076246edb13c7d4ac67e06f68473f4ad912e41c",
    "signer": "0x8fC311242F8bABA107e153Fa6BDc59e412be7A61",
    "userId": "257893262"
  }
}