{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301606",
    "entityType": "User",
    "nonce": "0xc082ce4a4145ba2db384097eac594c50ce27bfc5785677cd1b11cb9b92826982",
    "signature": "0xf2c3ee5b13c422b07bb26611bb4fb940675c3d3d32b0f5b0f6c0b555dfab3c0b05e87b259a6dd83090df98aaad0f30e9d96137aea9adf1fb144b74c12f77a8a91b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}