{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74315",
    "entityType": "User",
    "nonce": "0x3520f7553170d2f1d46e28dbf49372056d6bcbd215fc93b05c1df709e98d7225",
    "signature": "0x2a0f3f42dc3369713b7fd72cae351fafbec58c9ad4e6a6afc27f2eaafa2f0add19f8d9b1a87b21aea3c4b0cdb9266f6e575e89923dc7d7d0e67449a3f311eb921b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}