{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62416",
    "entityType": "User",
    "nonce": "0x1218c19bfd48441c5b4d6105f37b711bf36b7db509e369769918f7c23bf829f3",
    "signature": "0xaa66404959376f5e79b16d2727127e553d37b93258ca2b267064ab5aedc78be316aa7e20f984e83c8102cd5495e526e39cbdabb6e1f8949940af8d1c68b99dc81b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}