{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51335",
    "entityType": "User",
    "nonce": "0x589e4c56e4f5abcdeef4239f186e80ae98a2e3950bba4069616dadfe1a844f24",
    "signature": "0x04c7efc53a592a109674a10c3141bde99b67fc255b1d1ea4c352cae89e1dcd9c6cdb37e35edfdc596d2b50913dcf9d415dbfa9ef687270c0d5319b36f92b39c41c",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}