{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x8396bd85c1f7978b3eddc7b951a29fe66c2f677fc4df3a22c759b1e30422e930",
    "signature": "0x4d6457608b103cd56675257b386d14927e362b773019eeeb649467f8688e2aa63487f9f5088bf6f7c6c3044f3487c8ce226c306f63f3c513a6ae8473a8b067571b",
    "signer": "0x9b682c779356138D1D188CAB373b0F44a2d43d09",
    "userId": "512022848"
  }
}