{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd0542c2135b9431db222e9a998082f9e6e0d86b8bdbc5b766b4610b9e92895c3",
    "signature": "0x0c4ce95075f88e1a2247443ffe0a37547066341ab9052b37f6acad45e0bfc1a133f394fbb47727151d634c97dee0dbe8bac69d9c7f2efc45cb7e7162a03ec8541b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}