{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6676",
    "entityType": "User",
    "nonce": "0x38f91403d0b9b7aea5de4b296165c7fa5166e29ee1197080c67c57a6bd61be2e",
    "signature": "0x66e27d14ea591de2c783eca0432e55279940807a00470057a40ccb824db2bd4d635167a826abe016716b53d01af12d83a0a424f814a34f191d2021352a64ffcd1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}