{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x826fdcce41a405477c8e162fa700278a468c975d377157ae36bf0623f0dc51f8",
    "signature": "0xef714eeb7a07dcacbe3834aa28b57fbc6051e3a261f44d9a71daaf78ca17bee359db9ac881a938d93caab1f81f4c8b987ec0fb215c4a2d9b863c729f7c1d20f31b",
    "signer": "0xF9B644bb5d7485898881C9e02e17ba2A635ed179",
    "userId": "866715888"
  }
}