{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1a3657bf334348efd4bf424febefcad50a25642a9aa96015d4f91f1b029eec77",
    "signature": "0xf60dd4ec6bef87f9fe91d0f03d249c159f3ea28edd03c7f5d259f00caa2a6908036dfc098cd2a45a4c625d3401a5ee80ca35ea396141d18f5467a4aac931da071b",
    "signer": "0xbdB8eA7Aa50C113b1755Ee2985da6D2DC957FE4A",
    "userId": "941711771"
  }
}