{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5509ef7d2e738b251d1c997204cc133d46d22a74210be91330d593585029971f",
    "signature": "0x5865d6d0ba5abba617b5993794a8793c162ca01071fa6e23134a2d4e76efc1c66c4cf8eccab4473af9b082efbad81f4688547ebfe47db3fe5e865a3fbb57b30a1c",
    "signer": "0xDF7001f05D03f2FeE54a69Cf9132ADcd9714A81c",
    "userId": "169018689"
  }
}