{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1415509",
    "entityType": "User",
    "nonce": "0x9b7bb01e86103b7e90bcfe311a56fd900f7c783ab3ce6b542ae5a48fd8387858",
    "signature": "0xc484abcd8c17863bcc2c5a56182ec17050f887c880f7cb6ccdb7a70f6c5826de15c00c03abce614182d129da3cfe2ff4d85f9ca01d9b45153beb6396d0ea72171b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}