{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xb0e677dc022495e5f679ee42ae4d28879e029efa9785cb1ba69351c4dec49bfb",
    "signature": "0x68812b7d147462e9685a53cb97f833b8a1debeea3bacb585fc6340f9a7dfcfcc7454433a3cfdbeab18735e131a7b9cfd7658145899389ccc6f2d289da159875d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}