{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0xa56937983b2c5ec1694de207e1552aaf288105589117bc5f50a1c957e3ab70e8",
    "signature": "0xee7cd6004a5bef95bfad8da5e09e5d11e126f966afa07d1f9947ec32fa71d18341e8e6af4f27545645449f4edf9c0bd09374388ef76bedcb743e8b10d86f8ae41c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}