{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "427914",
    "entityType": "User",
    "nonce": "0x6916b60d38540d9ba0f04ed0819cd3a74f5c0ad68dca4183cbf045fd49b43fb3",
    "signature": "0x62862a36a0c997437e2a2e3e862fcc8fa763249666118a027abea3dc718f0add70acf7bb8db7e6789286c33299d1c2e19ff4cdad7d9c0d5df8f8ade092afd8081c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}