{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9245e4840f0d55583ca5f56168f3e61978f23fe981aea1b4087119710a4b2d78",
    "signature": "0x863ac87ef171f45854e2757f9af35c652f3e2b270930b8e5a6317e146b9429d313fab449c7cacbbe79911ff6f7d9b0b964490fe714b52711005ba49404088f5a1b",
    "signer": "0xe6155D2c22b3045b54a0E8F2CD4Ad64DFBcC2853",
    "userId": "993304290"
  }
}