{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8819",
    "entityType": "User",
    "nonce": "0x8e38be30f3af94fe4db2950328588a1d6e6f7e965f976b255ecb2c0b44eb3c70",
    "signature": "0x16f34e57cac7a08621724aa35f8bf0e3bc8277adf15a1292ca47d1aef55cd1451809603174bcee2efee67fc7046666112e53b036ff58f93966c7c66b01ca6db81b",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}