{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x996d271ef40bc7887d52e9246bc4bb43e77f70daab6cf068dbd87bbb63de4661",
    "signature": "0xeab89a8968f4051d398ec234f63ae71a60f419b3f127fbb6371964f907792af92b6c55c13971d26c99dfb2e643730c205a5999c5b2492fe34bdb33a4f61baa5b1b",
    "signer": "0xa09a223E91eD5820eE9151CA6E21b723e0a7DAac",
    "userId": "582532090"
  }
}