{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "900325196",
    "entityType": "User",
    "nonce": "0x36a8b7f895aa20d94229e1fd6b446df609ff4319303ccb242ce6e47afb53356a",
    "signature": "0xc1535d911c88a37c2544d397d3cda85b61a8c80891a4d636a86a0f157b49899a72038abf50cc6dc148bed0eec772fd6afca682a38efde7dbd365ac970bd1af941c",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}