{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3c43fac2d427d5d8c7486163b654aba58a0dc04c29867cb99bece80d9d69333a",
    "signature": "0x41275c5b54a52cbfc400819bee2164c86d625b95f95b374b0b27f956ed944ec92e74a9fb18d8d16acc940d5db3dd16bad040ee5512d6462cdb3decf51b6542ad1b",
    "signer": "0x6C8dB27dBE0cedf9BF235d44F3c7Bd9969091098",
    "userId": "945551895"
  }
}