{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb13542f12a944ec8a0436fea901dcde5dda720b41386dc296771ae7ab0e87f03",
    "signature": "0xae6b2ace73bd5499a3c3e58ff940147e2be14f4544aff414e0a67a80f9e76c8075b33db24b0503fb7f4dcb5c7a7719b1347ea303202fa9858e2dbb0e31812f441b",
    "signer": "0x97Fe4984b83A19285FD0AB2FD038b8F477568Cf6",
    "userId": "8465758"
  }
}