{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301606",
    "entityType": "User",
    "nonce": "0xef531fecfacab19d7f63231526eab7e61637d817340abe32b1f123f5da2334a5",
    "signature": "0x0ab1eea8ed5cb5b9198a90358399fd303f74772085e37c1b9c851f1de4031def6be04050e45bfc8f75938676c52664aa45a7b0fc46a4063a8df9add1ac72b2811c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}