{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342990",
    "entityType": "User",
    "nonce": "0xb44c3b6a4271958345d68d9eab6b6967d70da8faa047f72625af57694a428117",
    "signature": "0x8082260f51b01a93b3362be8eba2e390509d10a7996d324e69c21f15eba0267909808619f200a688edd055cf41279a8d4712e0faea34bd7f5d7c1b35721530801b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}