{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf0f032f2679ff62ab286f53e5d776b857a017356ff826fc82c6569263280bb3d",
    "signature": "0x45eca8c0e8df98dfcb304e35cb706ffedafbb3a3f7959c6919cd36dae0faf07a68095e27d1c07b26f5ea02c36f3343125a269ff6730a98dc021f09b9c4a26b141c",
    "signer": "0xA3D06a568CFFfCDB026b39303B1F0fc3171d48FE",
    "userId": "768302366"
  }
}