{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x55ae4415cae69798faa2292a183a2398225bbc9f348cdf3b0a2638c2c5619a5a",
    "signature": "0xaddad3cb0ae127d3aa173542e62a76bb55fa1e2833f99a7f78ae0e831b0ac412245450ee8c2eeb405103a80f9141b2bd93b9e61fb617e3d8a9815a07f3c9bb671c",
    "signer": "0xe083C6657964CDF8edDa4A2141B67047B9816C35",
    "userId": "861832117"
  }
}