{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x30aa05c27db4a1e6079b1dd6bb5e177e22c86b7f5b7eb125efa31ce4b90f087f",
    "signature": "0xa6abc314d4fc314e5d21c8b207ef6c19289d293097dc6fc7ef554b9187aa4de2638a68da11630e3da89959cbd8a499f93f55e042f9209ea51cb4bdfedeb050ac1c",
    "signer": "0x72B7d1ACc5f8913fC15485e04846eE94B1F116b9",
    "userId": "870280684"
  }
}