{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x58f29a024c12816a16db96ff1f61a15ba692087ed7e169caadab68800c29fa71",
    "signature": "0xa735ff18b5be7ce2ae396738ecddc16a144c20b3bd423418b4cebc4353d0a55f15925ed1cd6b292e3a77c985155996aaf643e58aa1b0d701f98d950fded698d31b",
    "signer": "0xEc78191b180b8AE58253DeC5F26158830A7e3ec4",
    "userId": "50277742"
  }
}