{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb4257d044ad8f88217424c33f38578616205c040a17c9f08c8cd684d695f420e",
    "signature": "0xa3185b9261f2bdb2b52834ec434108dc57e78238b25996e85232c8619924179452923a6065272866a3a63357b540da208e12288cd51d57f1c43a2f023ecd45e91c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}