{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778595",
    "entityType": "User",
    "nonce": "0xeb2f7a9ec49a53402f30369ab8d95074c1e1970d0b5a87a536d00e22eaa2c012",
    "signature": "0x34da99f055a80cb85b2686b4fb11adba57e4badb06228f5dac1a00b45edc678728fddb539852311bd00fad91fedc7b979f16d3b2ef7a8cd3406b3961c9512ab81c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}