{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x31ed1b306cb320fabe8c80933104f81da69fccb3d8431defb4919a83f530e744",
    "signature": "0xb80f60230d34c40eff041ed669cb8f949624a9b11e92d556375b5687771e67ee196e66a1fa7b35aa640f98f32e9e9eb37b068acf271020b4065084dc8b72dd341c",
    "signer": "0x5f0006669833681b50b86AB178041b0BfC4FA0b5",
    "userId": "26318941"
  }
}