{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe1c279aff2b86a2816ae4a0740c98935e5f43b953e136763b7bc4e5215066068",
    "signature": "0x6163ff3594b5792f8c200536dc2ace9b235a6aff0972040f85fd1f202c52bbe6763b81254aa4c5b03ef878f852951f2d4f4e8ff680f933154be41fadcadb611d1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}