{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xca9b5fa47a856f8216a1d9b917dd0033825dad29dbcca31b554c411ec7fc0288",
    "signature": "0x7aab9bbbebe97af18a5ceb791fc42b61931068644972c1cc72de41bd728b22093e0d088874bb64ae62a803b2324615a6a433c66ad1074355a93db7aec67c0fff1c",
    "signer": "0x9590a7FC32307801cFD04D758af761B7C95a3Ca8",
    "userId": "840971659"
  }
}