{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363121",
    "entityType": "User",
    "nonce": "0x120c52645c1999ef1a2e49bcfbd7ef18785cc206cbe9d497455d89fc4f392616",
    "signature": "0x97d72753c6d93a3ca5dafd66a1025c876a77bc9ff6fedda579418a4194f75e006c6a60e066ab2dc2f3cc761afa61ba01bbce4cfae7922b6978196e9ad4c0b6571c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}