{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbbf966b3359f492762e7e6d59a51f16da84896168a8a4b08be672b3e6d487444",
    "signature": "0xe7a797a8b3965750289140081a4df6d2c197c464adfaf6f1cad772ea046a39ef5af80fce0339d8fc412671b251b81291c7519bb082dca00f138ba876d255f4451c",
    "signer": "0x12d5CBa4485f436EeB6B89957dEA214D6542b530",
    "userId": "946478736"
  }
}