{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937299109",
    "entityType": "User",
    "nonce": "0x3a53dac210aca3fe26da757299eadf7887d03cca13cc528e69b2aa52b6aaf8e4",
    "signature": "0x82cebc199bd7c611270d68a75d67b1cc9ad259cf5dfab8b026477d7bade8dfe92282bc1a5e24d5a6a0db4d5bbb59094aa10f47c2b85bcbcda04768ba0a541e7a1c",
    "signer": "0x1f4676E66f85a00704B84876ae1B19DE3eff1F8F",
    "userId": "965243886"
  }
}