{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954131483",
    "entityType": "User",
    "nonce": "0x7444799eedc7a6699e90170c63d479190fd0d9ec6bafb5c090742c311108d8df",
    "signature": "0xd7242e9f553c7ac07197cdd661005a9446b448c6c257e5ed4a49ac35cd7724cd10a1b70d2953e5aff81876874d9c370fabe7885babb884e34bd09a81f1e858b91b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}