{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x9d0a7c45e4b55ca4f1ef7dc2654dc79fe6ac6f5b9dfc07f74a9f2ef1af3fdd39",
    "signature": "0xa294fcd024db5b6ac1cf606187d569a6c0475b792589a8982b16e778f47424382d0ac53bef7f66f595e43caabb7ce0c60bf92823926aed9f8b0fdf240aac34351b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}