{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40536",
    "entityType": "User",
    "nonce": "0xa3dfe0725f80e21429657c59db645862961f533cee965f751daf54e2b41077d4",
    "signature": "0x8a3be790644def483da4f6a399b8991c880bb1588711904426cd58bfe2e986e222a665002d526795df15b44c6f59e4db432c5d3ccf7503df7655c51c8aeaec741b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}