{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157445993",
    "entityType": "User",
    "nonce": "0x798e91a43dbd72bad90ab15512deec756e4d6f58bc12d47bf1c64145f16b0923",
    "signature": "0xd53f0a2cd5151a4b064114795f959d8783d89c3bd83fd493626825d0fd4d447434bf38831c487a01e6861fd8da7fa2b8d2992d6aac044979d77dc5482bc9d0051b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}