{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa121dafeab9ffd244854c3f1d72faf23140a9b1b9b13e1a6935359f9cf1581b5",
    "signature": "0x8414a95c146bf7cf5c38acad0bfb776d79661d2b2bdd7bf9eacbe1704a02b87a15868a14703dda96adda6a43970ef95dde86a63ec68e63d6d65ec8cedf0d988f1c",
    "signer": "0x7BDF2DAEDe0DfF3bC90d45aF455494685bb61Ac8",
    "userId": "930737161"
  }
}