{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212501",
    "entityType": "User",
    "nonce": "0xb82849f78b4249f5c7de43ac64d1cbc258b52fe4e5b996be24c3d9e5e66afcd8",
    "signature": "0x644f37794f210e88d5329d0b4b5bd38c195b795613c7c65a3846c88cde5076e9258a5aa69dabbff7c8e6906b4f97ae81298c6e272ad24dce36dd02065eabce641c",
    "signer": "0x1E097836b696E63387992B7402dCcEF7842F477a",
    "userId": "525334885"
  }
}