{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x4f4bac1cdb2fa512530b837a5de0061cee061c1f0bd9c42af7034bdceee34cb6",
    "signature": "0xe576024cb9c8683b548393c280f55419e7b0d44d4b161e4deb1ab1ca52a1c8be6d446da3b71232e0c1b3eaf0eab5a3836dcb7ca57f57bae471d7cde9b09708231b",
    "signer": "0x87e4380306024d22309CBb70efB443AC8aE372Fa",
    "userId": "308100838"
  }
}