{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994758391",
    "entityType": "User",
    "nonce": "0xaaebf9e38f995f3d5d21bdb3525b8bfa28a47ee4cbcd1d49c63e97b8b885ce35",
    "signature": "0xeb97ef50bdb47801df9e0802b04ace851136b2208358da710916bff725aaa7fe7d75a10cff394d6cb78e57b74be1f15e2b3fd1f939cddc88cb7243187932a8c51b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}