{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x761999808b3a9164864778b835d300ab9f78be0786d42e12cbc3e1dec0c6ab54",
    "signature": "0x8b8bbec26f248aff1a12486a2aee2d3b7ed85eea5ad3e1bc18aeb805eac0f0825f014526f20aa338fbdab9da1401729024eb73861663a218f1f85c1847a2506b1c",
    "signer": "0x47016be5f3059b02b8941f6121cCe9ba3B3dd542",
    "userId": "265874461"
  }
}