{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x4af9e17dfb5d6c578bd1bfb68b048aa490d4c2ebd76a783991c3ee051bcfbf4c",
    "signature": "0x2068e0f62b2f26f8fdebfb183bee1c55f73292937c47e6a609a191d2b56df23364586e4cb89a006b97f2b61ad802a59d62466547fa9d68c12963a393ce99d1111b",
    "signer": "0x433B6949BA291D415b88F2ae8168DC238f50e952",
    "userId": "452956272"
  }
}