{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "169328452",
    "entityType": "User",
    "nonce": "0xa25372b697cace9dd3933c7629b4dff0c179edfbfc47ac3b88ea9c72b37aee03",
    "signature": "0x1886f7fea2b2b39a5188e5758e8dffc8bb5740f70ac254e3f26993c7c15c5640654aeb2b134bbe6be4c5afe3cb67eb3c08cab0e692ffcac23d7713bd020e191e1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}