{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x402642a995c65a2ecb77d2dbb4978989944afcd102e3be7c8a49148b56db2882",
    "signature": "0xedcd2be1505f072eb8867c96c10681a3cba0dba3c4ed3ddd3efc4bbb52a038580caddc09a1008341602a528c53583c3869a143e4a806c2f85180cc9dce3a46601b",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}