{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x2d540a9187d471648ff1199a5f42ab06a6eacbcbdc064475a4d917d9ff5a8198",
    "signature": "0x31de17bfb3571e9b6382ec32b0a908ddecd133727f9ddc5b71d270ea34b323fa6ec58470b8e45a01ed76baf2216b72e8598e1b289bec4e92e3115a3b1bd218371b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}