{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335878078",
    "entityType": "User",
    "nonce": "0x09471af71699891b45cb6800c73188e05ca3c51bdd17a8f1d39e43f7e364de17",
    "signature": "0xd824791d0a001a3c914408348f8646b23c40dad7fd4e4f6b0bc6e0dcd238681a05c13bbc313d8ecc18e8b0cd1bfa17087a873100a18bc91c3fac21d0870c55851c",
    "signer": "0x83A4162810A55B49858D3b17aC8572D1c34eC8EE",
    "userId": "517422960"
  }
}