{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584724126",
    "entityType": "User",
    "nonce": "0xde0cf711fc155aafbf0eed340dc773a5c0a094b5aebc6c0dba80d491ac881c4e",
    "signature": "0xead25424249bf69216b1758df581f04598771dc4a967f1d5eb2032bbdeedcbde6afd91afb7ed8c85fe89ef1a6344c9a9e4375aa678c8e68d69d8451ddda990801c",
    "signer": "0x716be6DE1a739D8d981854E5a6992A6b53C88dd0",
    "userId": "244357868"
  }
}