{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138261",
    "entityType": "User",
    "nonce": "0x83837d675f9f2bc65b59375ebd0efd223a75ca77d1306721d4515a73f714dc26",
    "signature": "0x30b444b1d52c86117013d504800a223e41d88bda8d59f407a707328f349920a70f108fea5cb52a38619e84e95e9e233e3cac1276b40d5e6bc4337b31b962f3301c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}