{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x1f90b2d0ccd59e92c22090d88acc5f41f47aa7d24814155ec2e47221000d53ca",
    "signature": "0xfb55eca9fb0fa8212ce6fafe43fa000e8a9e75539f38b1f4800a2360395f597b79bff4f99cc8f05e8632183fec00ded31e30f31484724144db14e8e23eb4a5021c",
    "signer": "0x3e48DC5763519fbdE0A26db7C59929E8Bb6B8Fe2",
    "userId": "971129804"
  }
}