{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xd593fe4a828e8ab7986365689c635912faf906e447056953cab1f69839846e87",
    "signature": "0xc62830baa085ad916792f09169f8689bd6cbd895babb8515204dc2eb113d49172e2dba81c5e7480b834efb481d6695e2abeb1299842777d985dd82231271b9711b",
    "signer": "0xd8a65dC2d71D6caDA0ef13A84908F90052c425DA",
    "userId": "837557269"
  }
}