{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50625",
    "entityType": "User",
    "nonce": "0xa0a8dead3884d1f802c80bf083d79620f27404ba2061b701ed2531e4250b75bd",
    "signature": "0xa949b0d220703578eba64ca1b5f0f85d6143f984e2be7d83c77ee2b5936a8157700601dd3465a7c41dfd105c9f492c7b2ec002752bbe3c98b2f0feaf232f8aa71b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}