{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73258",
    "entityType": "User",
    "nonce": "0x31062ea33afc8e2c10e524edb483af8bf0e4645d08b2022523248d777d0f79aa",
    "signature": "0x4daa03e3003a24f02918048d26a88232fd0c95e00490b4fc5633910daa75f1bf1f698b1566108c30b73fda14b9fef6c9fef2a62a96d5ad0547a9e3e3f30e798d1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}