{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897728146",
    "entityType": "User",
    "nonce": "0xa3a94de1bcc28cf756c51ed9df22b908b1b4fbc180b541d01ed01763364a883e",
    "signature": "0xec351ef3c014613d9fd65f7e8cf260d0bbc11755594b6ebdb0bf408ced25649051883812804ea2f231c4baa22b78e7c432ce0fcd182c4d143e5a093d3e8d58231c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}