{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994830914",
    "entityType": "User",
    "nonce": "0x4bf70ebd060266393c9ea62b119de76a6cd8b0059536ac029ebbe0f11d6570f4",
    "signature": "0x0af4e441ad0409e163d1205effae83cdc5ead3a34d19580920a60b42f33e8a900e676381d6212a676f991ca45b99afed3d03d21df999b4f2518bace93dbf7ead1b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}