{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980916",
    "entityType": "User",
    "nonce": "0x3a1275b8ce0b60acedb5d22c6b5645e16575eef387ae6b42cb1354257d5340c1",
    "signature": "0x72e239aeefc80aff475b49b1007fbc12c14baf29efeb1bc51c1812581729f43824773b9b80a942c93a6078392dd6a833f0d8e6811221a8ac827a1465e8cf81be1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}