{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386893",
    "entityType": "User",
    "nonce": "0x70016f07851eaaee5926b44ce300ef339a81e27bb4fafad1af990bb64db9f524",
    "signature": "0x1b50bcc3235fc06d7c2c12f0b23d6777131c68915641acc35e43bd3681ef62481670f5883535377afa0f007e35623497b03ef09d7224fe22aea84eda9e4251cf1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}