{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745382175",
    "entityType": "User",
    "nonce": "0x62a87b8a90dd036f6e05e3753aa25629e92590ba0fc0f022246bcc4016a868ee",
    "signature": "0xd446762126926016abedd78ee413f7bc00464d3d18ce4b92276cec9de4e6a1ce309784f5e95ae15fc86c07e885e8135f7a30a7ce9c7ca8695c162cca20ab3b291c",
    "signer": "0xE6a2533061175ED4c7f073A7BE3dc4189A4DE47E",
    "userId": "427249190"
  }
}