{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964988041",
    "entityType": "User",
    "nonce": "0xfecd1861913bb20aa13dee40485475657952c24a3aa0ceca4d9c78e904ac79fb",
    "signature": "0xace3adee8f7dc2947771a9fd7a466f3f278d2bdf0705a043c2e4bd62f4f382f6311581678b931af184a3015fa8ad81e6578c719c66ad6ed88e69e41fc721b0961b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}