{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "91965250",
    "entityType": "User",
    "nonce": "0x657b1b7da3dd5853a327442687523050c746797d855b0c4f73f64f87f87ea322",
    "signature": "0x945aa19eafc34e564cb7e83d57406a5fb7838f764652e954857423f435b2fb342ab393bc4ef95818f0a342635e96cea119ab76dd621f0cbc7c05f9227e2025d71b",
    "signer": "0xaD52D1EE1cE4f3733864C144509576e22eeCbe26",
    "userId": "777447787"
  }
}