{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880867",
    "entityType": "User",
    "nonce": "0x26c96c50bbef221b44d8f8fc8c867275a031d9f6d643e9a0858b8bcad91f3635",
    "signature": "0x7b78a516b04830d4430d9789c80f74fad871788ecd3eab7b560d2505f68a74d26fd4a422f2d6c6b916b145edfb09fbadfeaa1bd98e7fea969b3221a3355507db1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}