{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "382674",
    "entityType": "User",
    "nonce": "0x4810b75da21a86f334a35a803715c6965b2f23896c43be55ca44f2a34f2161d8",
    "signature": "0xf46cf9cf01b0f57e7265f454a4d78dbbd7b264b5499acd342aff2e45bd897bc02c8f8612f32fde2dff74efb5a9aacac6cc1c4e6f317b3fdcd3cb27ec665fc1731b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}