{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113567",
    "entityType": "User",
    "nonce": "0x7c307066081f94ecc37283ce8f140c474ab31655cbf6925d373b3c3b42e341f5",
    "signature": "0x9a45bd799ad264a48234717c3d92666f5682729ba2f905d7e2a62defcc6e4f1954d2ac2772dd822c9a919fbb6591fee2ffdc096ed04b0724ed62a516939670ac1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}