{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240372435",
    "entityType": "User",
    "nonce": "0x03204fc3fe65bc547aa268da21dd6b0b77cd1b564bdce3190e34141dc6ffb55c",
    "signature": "0xb75148e4bc277a3a835dfc945e8ee9f650ba2bc30adf8319ae33f52094578e9057c2da0726d0f905c2ee46ba5d81020222c7f4cb1d000ea9aee9b8442ec969601b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}