{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870318408",
    "entityType": "User",
    "nonce": "0xe99b719831b652062da3dc7f05b7b56aed1b4a7554ad40d0b21887771889ca13",
    "signature": "0xc9b2f14866a518e561f67c903ed27d6d697ff518f7264ffd3e3ffb5535229d3928d740af2db7165720c03e23c8a75ca3d0a10a15a016f643a5a1518c0e5fd8211b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}