{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x260abedd3da73841d23ace07a863efdce864eb50c17b0d6b0d4b79736938535e",
    "signature": "0xcf0dacd73f939214a0a4af64ca935dcbb810bb11148a6cf909d9e38b9d6ae7ef173bb0ad69dfb951b21ac9813f845404ed02cc98072fd0e4395c5d7cb59575bb1b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}