{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "536634479",
    "entityType": "User",
    "nonce": "0x4969da5e846370ff3250b1d9aefa0087352fba1bcffe193e2c930f9aec64bda9",
    "signature": "0x80306215e9d2d6ca172c20b97662b36bcfc7e4b828e92cd1993397bcd7cfea0868e443b01b4de5ff919c13a2665762f0b8d2988762a395bf834995eaf1af57121c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}