{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66a022792da8975ddd4e6d23c694e8d3f33850f2650aaadb57ee66eef8f9bf96",
    "signature": "0x2aba45e5a711713530fc3c34cb3dc23590c3757f8cffea1a7a35a677b5f0bbce080e4bf616b7394000c5d6247f614397e88057ad6a325f35b3edace386575bc01b",
    "signer": "0x8B50B0687712445cB22f8e1232Be42e560bE3deb",
    "userId": "487640022"
  }
}