{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x0cfff8a58e24a6307d10b78bdf1169365f69c32288400dfa056da517bf9432f6",
    "signature": "0x428ba6df9c9063ce010699dd7fb82097338d44fb291f6535a469ed3544d48fdb5136f9f51b5e18c5ee11c3647eab8072546cc38bb5b6b5d063960b15916ccdc71c",
    "signer": "0xE5c3922424A1B896ad08ED5889f36Ca5DC40660a",
    "userId": "229327490"
  }
}