{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xe1a09e5025da6274b67101e3b91f85b1b7fd2ae59dc9d04fa10ec0c477bfd188",
    "signature": "0xf9a1c709160a10d6db3b650d069584b6c6eca3582e3e8a1e132971e54b2c4876752f9a52d06398c73499fd46986a3d27cec628eb445e1a1254aa71388d8299391c",
    "signer": "0x8b61B87EFfC875d065c2aeFDb0424BA7d522ce17",
    "userId": "723815891"
  }
}