{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea70093d3bee595ff9cdb211c3e19705c33ed3b2ae961e4e627c1a94314e8997",
    "signature": "0xfbf9331c635f8b05c4c450b3e29387c15132e22645ee2f57c44b781c2fa62249526b80873b35dfa6d7cc50f6e6d267526574b2958a333e3f8e104ba9a5ceb8081c",
    "signer": "0x9Ad8ED7C8fe61616Aa541e36F83727F85F31da86",
    "userId": "781606192"
  }
}