{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105821",
    "entityType": "User",
    "nonce": "0x9238056d89af00fc7149f8950145470a323be0a7f5a92835fb88a16b58bcbaf4",
    "signature": "0xff997ab2956b1cc08543095226046b80f5b79f84f933b38c9b9813b7df76740c568c65afbc0127af583706547a655a983e659942b960621d60aed71053c4d0ce1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}