{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x41c469ff787f0d655d4fd9ab37e50681068e9e02196587eed384c95f33825f7c",
    "signature": "0x80fd4face408396e0b1d56e2fe5d5b888bf9012478e89f0fa1ad700c7b5659b215d39e43d583dffd92842ace05a16cbb6543fa9099b4141af6626fd67c31163f1c",
    "signer": "0x7FCffbc9FB7516A6453F59c5b9918Ea8A7EB33eb",
    "userId": "502388335"
  }
}