{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3aa59463d47cba8d5a59b92baed9caa0ee9df44f3c3ea1929a43e4af5b432ec2",
    "signature": "0xf8e1d2a9d9008c13c92cdec30ea7e5f23605c2452afc4839f93443b703bf00804cbbdf2f1d0e8d4f0fe1e0af8fe4b359a0ab5e23057501c7087a72067ab769171b",
    "signer": "0x22BE227E528DB65123ac2f0c4fAc52284046E455",
    "userId": "730721935"
  }
}