{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1717913",
    "entityType": "User",
    "nonce": "0x5f8d702a1c5d15e6803cdfcb4cb3fdf3a01fbdecb09c9d6d923da4a4c0284e67",
    "signature": "0x95894567c4e46665e6055762c9cbe96e5e39753845d000e48ac19de528d9108065610fbb39c7410d03288b3c1682ae28a9749a7134356a742e305dbfb805427f1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}