{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151460",
    "entityType": "User",
    "nonce": "0xf91886ec26288645d590c5a5f8883cbc3ac370edc3cd481f63945b32555a9931",
    "signature": "0x1411ae0d5e8692fa07b97dcf6aa891bfe817b58929ae430c421ac8e54f5928d808e3c859488817cce1cd38d93cffe771c51d12167dfd8f5c39af2c8bb6aebc1f1c",
    "signer": "0x764341232AB28643e8106bCF183A4cCc2fFfa6c3",
    "userId": "67250118"
  }
}