{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e9df56cfcb2d6d15fd4585426333d1a70d7077ba1f30d1fe35a6480bd026ab3",
    "signature": "0x371f767d60860bec535c5e8848b83063905e665f6f2ba78b5a5567f3a714a3fc2def4f2fef80ba91342d70ac3308de717e3909c0d8df1de3c822b27f92f4b7431b",
    "signer": "0x1478EA92B5176D48396563da728425ea1d5Db728",
    "userId": "720276585"
  }
}