{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "726064",
    "entityType": "User",
    "nonce": "0xd508f359a4a2125b266ad4ca2a29db1d6cea06bf64e22d7f9bd75f03e3b7d321",
    "signature": "0xd070840cd751a665893cff9bdebf9e7c6e9b1c7019868671fc23cf99e13d77bb498740de32b4b9d221143e8b675f59ee4884a45b9b6fae00649ee94d976a64831c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}