{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "727223684",
    "entityType": "User",
    "nonce": "0x4634bdcb8a445852635d7bd2901a7097d80b85811989da2286c70456983a8cff",
    "signature": "0xec80bee284f0fbe507fbbe1bd39a5dd90b70e4ca08c6996380a1c7b88b8ad6720cc3bad7f8c246b92ffc59a1abfbda6e6985887b83bfed4c23e63a261a662c751b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}