{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166925",
    "entityType": "User",
    "nonce": "0x0d8ff3589ee04dd8296b4ecf83438c56d3e8f75c34564b3e3437ef5f31c85338",
    "signature": "0x67d1e2cd528b1b86e34417c9063e82af0f7e9102348146825eccaf64eee5c94d336c6f8ec5a5875bfd8946ccf1aa7fb2488c96fbcf56d8b02a904915096fe0291b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}