{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x4206c143b33e666d582afb27eb9ae76a30fc871937ec877cf64c9bc8620e9c6f",
    "signature": "0x5993c690ee4e0f4953768ce35eba075213896ef93d7fd80ae60ee9c8de3569742d7ff485589de6239a8cc9e73206104b8d7e3b247c84b4fab152e12f461c99e31b",
    "signer": "0x73E2794DB81EBdF032b2885674F93Dc04A35B6e3",
    "userId": "564914527"
  }
}