{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121113",
    "entityType": "User",
    "nonce": "0xe16d252fc05c39cf79855d121918d56f63aa83f718768392b41cd053ca797397",
    "signature": "0x9710d85e4721484c07417eeb1ec3ca8f6d6b551aeddd1555547a310fe168909e4afa3f65d713b9ea1a6e78c6c60dd854a91971731929b7bf1c31c602753912381b",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}