{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1000",
    "entityType": "User",
    "nonce": "0x6cbd52b7544e598b48f3524b7e20f91a0684063820e4b04e9098905bd3a75946",
    "signature": "0x1f8469d73b733fa06a9d66a2f92718c854ba0c38bcc8f9bac12bd8f80cb3b5ee1290ce7df79be3e7f01673cb1880896421435ae27a496732e6c84c36d4097cbe1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}