{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89512f64fd60f51e231d54b130da9cb728f3f483afd649dc2ace4e40b75172b1",
    "signature": "0xd63eff3d00f5ad63f808a04dbe130d2a9573582ededb7f3e445c2a996f49119902fbf183ca7737556db7c4c566d455cf483c07d6b03d455046744adc5df29f4f1c",
    "signer": "0x39d96253223430938194b674B1032bdF3e3faEa4",
    "userId": "295152374"
  }
}