{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0f66f730a4c183924d5b861acc9e6e170a1d8a3bb65648d82aa2af5bdbe6b657",
    "signature": "0xcb6630fcada43ff80b60fcd1c072cb987bae2e442d637f4ca7cfb026465a0deb04f2d4ebf1f2eaae673f6b19d6c394ea13f0e7899125061021fcd028e0aa43f41c",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}