{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48765",
    "entityType": "User",
    "nonce": "0x778cab65905219a7855c5e5b8f9a1fefd03b16d34c1857c47f8f8928d5559137",
    "signature": "0x5b849c9188a9f23221df4cef1e71517e453f793b85b01223e9311aacbe448f733159fe16fcd4413ea52d52da32145ff73a54b9b4e4549b641d7207889df2b55c1c",
    "signer": "0x19f45BcD7C0300306b47969a99Dc4bc70Fa19fa9",
    "userId": "20289770"
  }
}