{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4966",
    "entityType": "User",
    "nonce": "0x97d3a52c03993606c42f6f22c2bda2dcb0559e108ea75b327b7f95838939c84e",
    "signature": "0x73b59eab9fb64699e7698586d315b7a7e501471199bb90c9dffb710f496a8f94396557aa93a5b92967b673cd4bbb611e8223d16df8773a57012ec2b84961e77d1c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}