{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x09d1c6e90d8cd8bdc49c02105632745826ef29bc45517cbbeb52348f872e29b4",
    "signature": "0x712b47a9a812e59cfc14e16a977f88decfd87e79e7511881116c74c68d2c8f9b1dd943deb234d59b8e6b7e76a5a78904f57d780a395aa5b79184db9348be4eee1c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}