{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x18052eef6982e085b65df272c5f0a3ff9f7e4c4ab9a6f4d7289fbfd1d0c105d8",
    "signature": "0xc21e9e5d09e5191eeb072cbaa98aaf6b7586654b02a00f20b94476b6312eb18b0130c10e7fe2e3954594c5ed6ccb64980dee85916396e487e4d863e20a0677ca1b",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}