{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0x77525dc2594e91e934a684f62ce19dff18accd06ef7bc359e6b4fcac7f9ae086",
    "signature": "0xaad1515c23ce5db11910a4aa18376a2a50df5134b33dc89f8256df5995b9805a571875420e87817c62eb2ca9fbc148dd4c4db9aa735046f648661dba5617c6b81c",
    "signer": "0x16D3bf5a80bAfFB2f1550d49b1203D4CA532DA1C",
    "userId": "1994482"
  }
}