{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa5845276eb874e91807ae59a481b2594c6abf50cb028fec3575ea12366826454",
    "signature": "0x53f58fadee4e5be28415a2111d911aac3b86be8ec4649f22bd183e9be3b3636d6dd85be725fa2a58a30660165521528c9250054e851242aa98e3cf6346c58f891b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}