{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "292325",
    "entityType": "User",
    "nonce": "0x648588383011763d3adfaa4c6d6b4074c958e04f15f7200cd736f45d5071fe4f",
    "signature": "0xdd31ae912166b9b35e527c0a9482c3a7147b6b5bf314c710dc4c688b5d71be28196a76efcf3f3a2d31543e618cd2d6fe0363ba3427b7a91fb45d469c95beaeee1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}