{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x3e0ed7e6a2de1cd26700c1eb80458937d6afd0fa4f753007fb888429d34d4978",
    "signature": "0xbeacb1e13d3c05ae27af5b03832f327ef24c180eccaf35837affefd88a91017c7d665a29d31aa874b6115412e36929c9db8ad1d3ea1349534ed5bdb67a997f441c",
    "signer": "0xC0f8D2C092ae50e1512d827eBeb817e1ea4112E0",
    "userId": "451729998"
  }
}