{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "312809586",
    "entityType": "User",
    "nonce": "0xcc3dbdadfeed4578d4e8181d79b9c03b580ea793cb96ba8edae14b9c9e1bd339",
    "signature": "0xf15af22a2432bf4fd4384da0cf0be0f5ed526e4fe1572c327083832d30808d90088cff5c66fef2eb62ea5d855df009fbca750777bb5c355552d0a7c21aff580d1c",
    "signer": "0x0cD9B2b30689aDCcF31aAfdC5794FE443501f120",
    "userId": "676591199"
  }
}