{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191643",
    "entityType": "User",
    "nonce": "0x762d149a9999b40d366443a5a45982173631281a5c0ad5cbbc4b989119267ff0",
    "signature": "0x14b52a6e20e1d849279373805713476aa9d63ee3bb9880a1bdd398ab7a63f9720c1974a35a70de3fa709d563883008189dbf7889825eb260f2b8bfcbdedd52cf1c",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}